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		<title>Geometric Programming</title>
		<link>http://hjaya.wordpress.com/2009/07/02/geometric-programming/</link>
		<comments>http://hjaya.wordpress.com/2009/07/02/geometric-programming/#comments</comments>
		<pubDate>Thu, 02 Jul 2009 08:10:05 +0000</pubDate>
		<dc:creator>hjaya</dc:creator>
				<category><![CDATA[Java]]></category>

		<guid isPermaLink="false">http://hjaya.wordpress.com/?p=530</guid>
		<description><![CDATA[Dalam post kali ini, kita akan membahas tentang Geometric Programming yang sederhana-sederhana aja.
  


Sebagai permulaan, kita akan (amat) sangat membutuhkan kelas Point2D (titik). Kelas Point2D kita rancang sebagai berikut:
  
 public final class Point2D implements Serializable, Comparable&#60;Point2D&#62;{
    &#160;&#160;&#160; private static final long serialVersionUID = -6165181156932437469L;
    &#160;&#160;&#160; final [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=hjaya.wordpress.com&blog=5640339&post=530&subd=hjaya&ref=&feed=1" />]]></description>
			<content:encoded><![CDATA[<div class='snap_preview'><br /><p>Dalam post kali ini, kita akan membahas tentang Geometric Programming yang sederhana-sederhana aja.<br />
  
</p>
<ol>
<li>Sebagai permulaan, kita akan (amat) sangat membutuhkan kelas <em>Point2D</em> (titik). Kelas <em>Point2D</em> kita rancang sebagai berikut:<br />
  </p>
<p> <code><strong><span style="color:rgb(127,0,85);">public final class</span></strong> Point2D <strong><span style="color:rgb(127,0,85);">implements</span></strong> Serializable, Comparable&lt;Point2D&gt;{<br />
    &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">private static final long</span></strong> <em><span style="color:rgb(0,0,192);">serialVersionUID</span></em> = -6165181156932437469L;<br />
    &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">final</span></strong> Double <span style="color:rgb(0,0,192);">x</span>;<br />
    &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">final</span></strong> Double <span style="color:rgb(0,0,192);">y</span>;<br />
    <br />
    &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">public</span></strong> Point2D(<strong><span style="color:rgb(127,0,85);">final double</span></strong> x, <strong><span style="color:rgb(127,0,85);">final double</span></strong> y){<br />
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">this</span></strong>.<span style="color:rgb(0,0,192);">x</span> = x;<br />
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">this</span></strong>.<span style="color:rgb(0,0,192);">y</span> = y;<br />
    &nbsp;&nbsp;&nbsp; }<br />
    <br />
    &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">public</span></strong> Double getX() {<strong><span style="color:rgb(127,0,85);">return</span></strong> <span style="color:rgb(0,0,192);">x</span>;}<br />
    &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">public</span></strong> Double getY() {<strong><span style="color:rgb(127,0,85);">return</span></strong> <span style="color:rgb(0,0,192);">y</span>;}<br />
    <br />
    &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">public int</span></strong> hashCode() {<br />
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">final int</span></strong> prime = 31;<br />
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">int</span></strong> result = 1;<br />
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp; &nbsp;result = prime * result + ((<span style="color:rgb(0,0,192);">x</span> == <strong><span style="color:rgb(127,0,85);">null</span></strong>) ? 0 : <span style="color:rgb(0,0,192);">x</span>.hashCode());<br />
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp; &nbsp;result = prime * result + ((<span style="color:rgb(0,0,192);">y</span> == <strong><span style="color:rgb(127,0,85);">null</span></strong>) ? 0 : <span style="color:rgb(0,0,192);">y</span>.hashCode());<br />
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">return</span></strong> result;<br />
    &nbsp;&nbsp;&nbsp; }<br />
    <br />
    &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">public boolean </span></strong>equals(Object obj) {<br />
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">if</span></strong> (<strong><span style="color:rgb(127,0,85);">this</span></strong> == obj) <strong><span style="color:rgb(127,0,85);">return true</span></strong>;<br />
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">if</span></strong> (obj == <strong><span style="color:rgb(127,0,85);">null</span></strong>) <strong><span style="color:rgb(127,0,85);">return false</span></strong>;<br />
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">if</span></strong> (getClass() != obj.getClass()) <strong><span style="color:rgb(127,0,85);">return false</span></strong>;<br />
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp; &nbsp;<br />
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">final</span></strong> Point2D other = (Point2D) obj;<br />
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">if</span></strong> (<span style="color:rgb(0,0,192);">x</span> == <strong><span style="color:rgb(127,0,85);">null</span></strong>) {<br />
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">if</span></strong> (other.<span style="color:rgb(0,0,192);">x</span> != <strong><span style="color:rgb(127,0,85);">null</span></strong>) <strong><span style="color:rgb(127,0,85);">return false</span></strong>;<br />
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp; &nbsp;}<br />
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">else if</span></strong> (!<span style="color:rgb(0,0,192);">x</span>.equals(other.<span style="color:rgb(0,0,192);">x</span>)) <strong><span style="color:rgb(127,0,85);">return false</span></strong>;<br />
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp; &nbsp;<br />
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">if</span></strong> (<span style="color:rgb(0,0,192);">y</span> == <strong><span style="color:rgb(127,0,85);">null</span></strong>) {<br />
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">if</span></strong> (other.<span style="color:rgb(0,0,192);">y</span> != <strong><span style="color:rgb(127,0,85);">null</span></strong>) <strong><span style="color:rgb(127,0,85);">return false</span></strong>;<br />
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp; &nbsp;}<br />
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">else if</span></strong> (!<span style="color:rgb(0,0,192);">y</span>.equals(other.<span style="color:rgb(0,0,192);">y</span>)) <strong><span style="color:rgb(127,0,85);">return false</span></strong>;<br />
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp; &nbsp;<br />
    &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">return true</span></strong>;<br />
    &nbsp;&nbsp;&nbsp; }<br />
    <br />
    &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">public int</span></strong> compareTo(Point2D p) {<strong><span style="color:rgb(127,0,85);">return</span></strong> <span style="color:rgb(0,0,192);">x</span>.compareTo(p.<span style="color:rgb(0,0,192);">x</span>) == 0 ? (<span style="color:rgb(0,0,192);">y</span>.compareTo(p.<span style="color:rgb(0,0,192);">y</span>)) : (<span style="color:rgb(0,0,192);">x</span>.compareTo(p.<span style="color:rgb(0,0,192);">x</span>));}<br />
    <br />
    &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">public</span></strong> String toString(){<strong><span style="color:rgb(127,0,85);">return</span></strong> <span style="color:rgb(0,0,192);">x</span> + <span style="color:rgb(0,0,192);">","</span> + <span style="color:rgb(0,0,192);">y</span>;}<br />
    }&nbsp; </code>
  </p>
</li>
<li>Kemudian kita akan membutuhkan kelas <em>Points</em> yang akan melakukan operasi-operasi geometrik: Letakkan kelas <em>Points</em> pada package yang sama dengan kelas <em>Point2D</em> dan <em>Point3D</em>.<br />
  <br />
  <code><strong><span style="color:rgb(127,0,85);">public final class</span></strong> Points {<br />
  &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">public static double</span></strong> calcPolygonArea(Point2D[] points){<br />
  &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">assert</span></strong>(points.<span style="color:rgb(0,0,192);">length </span>&gt; 2);<br />
  &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;<br />
  &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">double</span></strong> result = 0D;<br />
  &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">for</span></strong> (<strong><span style="color:rgb(127,0,85);">int</span></strong> i = 1; i &lt;= points.<span style="color:rgb(0,0,192);">length</span>; i++)<br />
  &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; result += points[i % points.<span style="color:rgb(0,0,192);">length</span>].<span style="color:rgb(0,0,192);">x</span> * (points[(i+1) % points.<span style="color:rgb(0,0,192);">length</span>].<span style="color:rgb(0,0,192);">y</span> - points[i-1].<span style="color:rgb(0,0,192);">y</span>);<br />
  &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">return</span></strong> Math.<em>abs</em>(result) / 2;<br />
  &nbsp;&nbsp;&nbsp; }<br />
  <br />
  &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">public static double</span></strong> calcDistanceBetweenTwoPoints(Point2D p1, Point2D p2){<br />
  &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">return</span></strong> Math.<em>hypot</em>(p1.<span style="color:rgb(0,0,192);">x</span> - p2.<span style="color:rgb(0,0,192);">x</span>, p1.<span style="color:rgb(0,0,192);">y</span> - p2.<span style="color:rgb(0,0,192);">y</span>);<br />
  &nbsp;&nbsp;&nbsp; }<br />
  }&nbsp; </code><br />
  </li>
</ol>
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		<item>
		<title>Quiz : Tampilkan Kata Demi Kata</title>
		<link>http://hjaya.wordpress.com/2009/06/23/quiz-tampilkan-kata-demi-kata/</link>
		<comments>http://hjaya.wordpress.com/2009/06/23/quiz-tampilkan-kata-demi-kata/#comments</comments>
		<pubDate>Tue, 23 Jun 2009 14:48:10 +0000</pubDate>
		<dc:creator>hjaya</dc:creator>
				<category><![CDATA[Java]]></category>

		<guid isPermaLink="false">http://hjaya.wordpress.com/?p=517</guid>
		<description><![CDATA[Dengan hanya menggunakan


Method indexOf(int) pada String atau overload-nya
Method substring(int) pada String atau overload-nya&#8230;
Satu dan hanya satu kali iterasi, yaitu via while(boolean);

Tampilkan sebuah string kata per kata.
Contoh : 
  public class TampilPerKata {
  &#160; public static void main(String[] args) {
  &#160;&#160;&#160; String kalimat = "mari kita pergi berlibur";
  &#160;&#160;&#160; while (/*code*/) {
 [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=hjaya.wordpress.com&blog=5640339&post=517&subd=hjaya&ref=&feed=1" />]]></description>
			<content:encoded><![CDATA[<div class='snap_preview'><br /><p>Dengan hanya menggunakan
</p>
<ol>
<li>Method <code>indexOf(<strong><span style="color:rgb(127,0,85);">int</span></strong>)</code> pada String atau overload-nya</li>
<li>Method <code>substring(<strong><span style="color:rgb(127,0,85);">int</span></strong>)</code> pada String atau overload-nya&#8230;</li>
<li>Satu dan hanya satu kali iterasi, yaitu via <code>while(<strong><span style="color:rgb(127,0,85);">boolean</span></strong>);</code></li>
</ol>
<p>Tampilkan sebuah string kata per kata.</p>
<p>Contoh : <code><br />
  <br /><strong><span style="color:rgb(127,0,85);">public class</span></strong> TampilPerKata {<br />
  &nbsp; <strong><span style="color:rgb(127,0,85);">public static void</span></strong> main(String[] args) {<br />
  &nbsp;&nbsp;&nbsp; String kalimat = <span style="color:rgb(0,0,192);">"mari kita pergi berlibur"</span>;<br />
  &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">while</span></strong> (/*code*/) {<br />
  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /*code*/<br />
  &nbsp;&nbsp;&nbsp; }<br />
  &nbsp; }<br />
  }</code><br />
  <br />Dan output yang dihasilkan adalah :<br />
  mari<br />
  kita<br />
  pergi<br />
  berlibur
</p>
<p>Catatan : String yang diberikan pasti dalam format yang benar, sehingga tidak perlu validasi lanjut.<br />
  
</p>
<p>Dan inilah jawaban terbaik yang bisa saya berikan :<br />
  <br /><code><strong><span style="color:rgb(127,0,85);">public class</span></strong> TampilPerKata {<br />
  &nbsp; <strong><span style="color:rgb(127,0,85);">public static void</span></strong> main(String... args){<br />
  &nbsp;&nbsp;&nbsp; String kalimat = <span style="color:rgb(0,0,192);">"mari kita pergi berlibur"</span>;<br />
  <br />
  &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">boolean</span></strong> lanjut = true;<br />
  &nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">while</span></strong> (lanjut){<br />
  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong><span style="color:rgb(127,0,85);">int</span></strong> i = kalimat.indexOf(<span style="color:rgb(0,0,192);">" "</span>);<br />
  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong></strong>lanjut = i != -1;<br />
  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <strong></strong>System.<em><span style="color:rgb(0,0,192);">out</span></em>.println(lanjut ? kalimat.substring(0, i) : kalimat);<br />
  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; kalimat = kalimat.substring(i + 1);<br />
  &nbsp;&nbsp;&nbsp; }<br />
  &nbsp; }<br />
  }</code></p>
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		<item>
		<title>BigDecimal, BigInteger dan BigMistake</title>
		<link>http://hjaya.wordpress.com/2009/06/20/bigdecimal-biginteger-dan-bigmistake/</link>
		<comments>http://hjaya.wordpress.com/2009/06/20/bigdecimal-biginteger-dan-bigmistake/#comments</comments>
		<pubDate>Sat, 20 Jun 2009 23:41:52 +0000</pubDate>
		<dc:creator>hjaya</dc:creator>
				<category><![CDATA[Java]]></category>

		<guid isPermaLink="false">http://hjaya.wordpress.com/?p=503</guid>
		<description><![CDATA[Harus diakui, judul post kali ini tidak orisinil. Tetapi, judulnya tetap saja menarik dan mungkin post kali ini akan bisa menjelaskan tentang BigMistake ketika kita memakai BigDecimal.
1. BigMistake pertama dalam memakai BigDecimal dan BigInteger adalah : runtime!! No doubt about it. Salah satu pelajaran yang bisa dipetik dari BigMistake ini adalah : Gunakan BigDecimal dan [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=hjaya.wordpress.com&blog=5640339&post=503&subd=hjaya&ref=&feed=1" />]]></description>
			<content:encoded><![CDATA[<div class='snap_preview'><br /><p>Harus diakui, judul post kali ini tidak orisinil. Tetapi, judulnya tetap saja menarik dan mungkin post kali ini akan bisa menjelaskan tentang BigMistake ketika kita memakai <code>BigDecimal</code>.</p>
<p>1. BigMistake pertama dalam memakai <code>BigDecimal</code> dan <code>BigInteger</code> adalah : <em>runtime</em>!! No doubt about it. Salah satu pelajaran yang bisa dipetik dari BigMistake ini adalah : Gunakan <code>BigDecimal</code> dan <code>BigInteger</code> hanya jika diperlukan, sebisa mungkin gunakan <strong><span style="color:#7f0055;">double</span></strong> atau <strong><span style="color:#7f0055;">float</span></strong>. Tetapi, satu yang pasti, untuk perkara duit gunakan <code>BigDecimal</code>.</p>
<p>2. <code>MathContext</code> adalah wajib<br />
Kode program berikut ini akan mengalikan 0.1 dengan 10. Hasil yang seharusnya keluar adalah 1. Tetapi, coba tebak output apa yang akan anda terima?</p>
<p><code><strong><span style="color:#7f0055;">public static void</span></strong> main(String[] args) {<br />
&nbsp;&nbsp;BigDecimal _ZeroPointOne = <strong><span style="color:#7f0055;">new</span></strong> BigDecimal(0.1);<br />
&nbsp;&nbsp;System.<em><span style="color:#0000C0;">out</span></em>.println(_ZeroPointOne.multiply(BigDecimal.<em><span style="color:#0000C0;">TEN</span></em>));<br />
}</code><br />
Alih-alih mendapatkan output 1 atau 1.000 atau yang sejenis, anda akan memperoleh output 1.0000000000000000555111512312578270211815834045410156250.. mengejutkan&#8230;tentu saja.</p>
<p>Untuk mengatasi hal ini, Java sebenarnya sudah menyiapkan solusi, yaitu <b>MathContext</b>. Secara sederhana, <code>MathContext</code> adalah sebuah object yang menentukan setting-setting yang akan dipakai dalam kalkulasi, seperti presisi dan mode pembulatan.</p>
<p>Mari kita lihat output apa yang akan diterima jika kita menggunakan <code>MathContext</code> :</p>
<p><code><strong><span style="color:#7f0055;">public static void</span></strong> main(String[] args) {<br />
&nbsp;&nbsp;MathContext ctx = <strong><span style="color:#7f0055;">new</span></strong> MathContext(10, RoundingMode.<em><span style="color:#0000C0;">HALF_UP</span></em>);<br />
&nbsp;&nbsp;BigDecimal _ZeroPointOne = <strong><span style="color:#7f0055;">new</span></strong> BigDecimal(0.1, ctx);<br />
&nbsp;&nbsp;System.<em><span style="color:#0000C0;">out</span></em>.println(_ZeroPointOne.multiply(BigDecimal.<em><span style="color:#0000C0;">TEN</span></em>, ctx));<br />
}</code><br />
Yap.. ternyata hasil yang diperoleh adalah 1.000000000 .. hasil yang diharapkan tentunya.</p>
<p>Sekarang, apakah kita harus menyediakan sebuah <code>MathContext</code> dalam setiap operasi di <code>BigDecimal</code>. Sebaiknya iya dan sebaiknya <code>MathContext</code> yang dipakai dari awal sampai akhir penggunaan <code>BigDecimal</code> menggunakan context yang sama.</p>
<p>Agar tidak terlalu bingung mempelajari <code>MathContext</code> mungkin ada baiknya kita menggunakan <code>MathContext</code> standard yang sudah disediakan oleh Java. Ada empat buah <code>MathContext</code> yang sudah disediakan, yaitu <b>UNLIMITED</b>, <b>DECIMAL32</b>, <b>DECIMAL64</b> dan <b>DECIMAL128</b>. Sebagai permulaan, gunakanlah <code>MathContext.<em><span style="color:#0000C0;">DECIMAL64</span></em></code></p>
<p>Lantas, bagaimana output yang akan kita peroleh dengan kode program di atas jika menggunakan <code>MathContext</code> DECIMAL64?</p>
<p><code><strong><span style="color:#7f0055;">public static void</span></strong> main(String[] args) {<br />
&nbsp;&nbsp;MathContext ctx = MathContext.<em><span style="color:#0000C0;">DECIMAL64</span></em>;<br />
&nbsp;&nbsp;BigDecimal _ZeroPointOne = <strong><span style="color:#7f0055;">new</span></strong> BigDecimal(0.1, ctx);<br />
&nbsp;&nbsp;System.<em><span style="color:#0000C0;">out</span></em>.println(_ZeroPointOne.multiply(BigDecimal.<em><span style="color:#0000C0;">TEN</span></em>, ctx));<br />
}</code><br />
Hore, kita mendapatkan output 1.000000000000000.. hasil yang diharapkan dengan jumlah angka di belakang koma yang cukup panjang.</p>
<p>Sebagai best practice, gunakan selalu <code>MathContext</code> dalam operasi-operasi perhitungan yang melibatkan <code>BigDecimal</code> dan untuk kebanyakan perhitungan, <code>MathContext.<em><span style="color:#0000C0;">DECIMAL64</span></em></code> sudah sangat mumpuni.</p>
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		<title>Method isPowerOfTwo(long number)</title>
		<link>http://hjaya.wordpress.com/2009/06/20/method-ispoweroftwolong-number/</link>
		<comments>http://hjaya.wordpress.com/2009/06/20/method-ispoweroftwolong-number/#comments</comments>
		<pubDate>Sat, 20 Jun 2009 09:16:02 +0000</pubDate>
		<dc:creator>hjaya</dc:creator>
				<category><![CDATA[Java]]></category>

		<guid isPermaLink="false">http://hjaya.wordpress.com/?p=494</guid>
		<description><![CDATA[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024&#8230;
Di atas itu adalah barisan bilangan yang berada dalam bentuk 2n, dimana n = 0, 1, 2, 3.. ; n ε bilangan cacah.
Dan dibawah ini adalah method static untuk memeriksa apakah sebuah bilangan (long) merupakan bilangan 2n :
public static boolean isPowerOfTwo(long number) throws ArithmeticException{
&#160;&#160;if (number [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=hjaya.wordpress.com&blog=5640339&post=494&subd=hjaya&ref=&feed=1" />]]></description>
			<content:encoded><![CDATA[<div class='snap_preview'><br /><p>1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024&#8230;</p>
<p>Di atas itu adalah barisan bilangan yang berada dalam bentuk 2<sup>n</sup>, dimana n = 0, 1, 2, 3.. ; n ε bilangan cacah.</p>
<p>Dan dibawah ini adalah method static untuk memeriksa apakah sebuah bilangan (<strong><span style="color:#7f0055;">long</span></strong>) merupakan bilangan 2<sup>n</sup> :</p>
<p><code><strong><span style="color:#7f0055;">public static boolean</span></strong> isPowerOfTwo(<strong><span style="color:#7f0055;">long</span></strong> number) <strong><span style="color:#7f0055;">throws</span></strong> ArithmeticException{<br />
&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (number &lt; 1) <strong><span style="color:#7f0055;">throw new</span></strong> ArithmeticException(<span style="color:#0000C0;">"number must be greater than 0"</span>);<br />
&nbsp;&nbsp;<strong><span style="color:#7f0055;">return</span></strong> (number &amp; (number - 1)) == 0;<br />
}</code></p>
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		<title>Toleransi Pattern Pada Kelas DateFormat..</title>
		<link>http://hjaya.wordpress.com/2009/06/19/toleransi-pattern-pada-kelas-simpledateformat/</link>
		<comments>http://hjaya.wordpress.com/2009/06/19/toleransi-pattern-pada-kelas-simpledateformat/#comments</comments>
		<pubDate>Fri, 19 Jun 2009 10:06:16 +0000</pubDate>
		<dc:creator>hjaya</dc:creator>
				<category><![CDATA[Java]]></category>

		<guid isPermaLink="false">http://hjaya.wordpress.com/?p=485</guid>
		<description><![CDATA[Di Java, kita mengenal kelas DateFormat. Kelas ini berfungsi untuk mem-parsing String (dalam pattern tertentu) menjadi Date dan juga sebaliknya.

Secara singkat, kita biasa menggunakan kelas DateFormat seperti ini :
  &#160; public class Main {
  &#160;&#160;&#160; public static void main(String... args) {
  &#160;&#160;&#160;&#160;&#160; String pattern = "yyyyMMdd";
  &#160;&#160;&#160;&#160;&#160; DateFormat dateFormatter = new [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=hjaya.wordpress.com&blog=5640339&post=485&subd=hjaya&ref=&feed=1" />]]></description>
			<content:encoded><![CDATA[<div class='snap_preview'><br /><p>Di Java, kita mengenal kelas <em>DateFormat</em>. Kelas ini berfungsi untuk mem-parsing <em>String</em> (dalam pattern tertentu) menjadi <em>Date</em> dan juga sebaliknya.
</p>
<p>Secara singkat, kita biasa menggunakan kelas <em>DateFormat</em> seperti ini :<br />
  <br /><code><strong><span style="color:rgb(127,0,85);">&nbsp; public class</span></strong> Main {<strong><span style="color:rgb(127,0,85);"><br />
  &nbsp;&nbsp;&nbsp; public static void</span></strong> main(String... args) {<br />
  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; String pattern = <span style="color:rgb(0,0,192);">"yyyyMMdd"</span>;<br />
  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; DateFormat dateFormatter = <strong><span style="color:rgb(127,0,85);">new</span></strong> SimpleDateFormat(pattern);<br />
  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; String _17_Juni_09 = <span style="color:rgb(0,0,192);">"20090617"</span>;<strong><span style="color:rgb(127,0,85);"></p>
<p>  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></strong></code><code><strong><span style="color:rgb(127,0,85);">try </span></strong></code><code><strong><span style="color:rgb(127,0,85);"></span></strong>{<br />
  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; System.<em><span style="color:rgb(0,0,192);">out</span></em>.println(dateFormatter.parse(_17_Juni_09));<br />
  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; } <strong><span style="color:rgb(127,0,85);">catch</span></strong> (ParseException e) {<br />
  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; e.printStackTrace();<br />
  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br />
  &nbsp;&nbsp;&nbsp; }<br />
  &nbsp; }</code>
</p>
<p>Ada satu hal menarik yang akan kita bahas dalam kode program di atas. Yaitu <em>ParseException</em>. Secara default, <em>DateFormat</em> akan berusaha sebaik-baiknya untuk mem-parsing parameter yang dikirimkan. Hal ini bisa berakibat baik dan bisa juga berakibat buruk. Sebagai best practice, sebaiknya kita mempelajari keburukan dari <em>toleransi</em> dari <em>DateFormat</em>.
</p>
<p>Contoh 1 : Sebuah <em>String</em> &#8220;20090617&#8243; akan diterjemahkan sebagai 17 Juni 2009 (benar)<br />
  <br />Parameter yang dikirim logically dan physically benar. Logically benar karena tanggal 17 Juni 2009 memang benar-benar &#8216;ada&#8217; dan physically benar karena mengikuti kaedah penulisan tanggal yang benar</p>
<p>Contoh 2 : Sebuah <em>String</em> &#8220;20090635&#8243; akan diterjemahkan sebagai 5 Juli 2009 (bisa benar, bisa salah)<br />
  <br />Parameter yang dikirim logically salah namun physically benar. Logically salah karena tanggal 35 Juni 2009 sebenarnya tidak &#8216;ada&#8217; tetapi physically benar karena mengikuti kaedah penulisan tanggal yang benar.</p>
<p>Contoh 3 : Sebuah <em>String</em> &#8220;200906a7&#8243; akan menghasilkan <em>ParseException</em> (benar)<br />
  <br />Parameter yang dikirim logically salah dan physically salah.
</p>
<p>Pada contoh ke-2, mengapa <em>DateFormat</em> tidak melempar exception?? Karena memang secara default, <em>DateFormat</em> akan mentolerir kesalahan logic dan akan tetap berusaha mem-parsing input yang diberikan.<br />
  <br />Pada contoh ke-3, mengapa <em>DateFormat</em> melempar exception?? Karena input yang dikirim memang tidak bisa diparsing.
</p>
<p>Kesimpulan yang bisa kita tarik sampai saat ini adalah <em>DateFormat</em> secara default hanya akan melempar exception jika data physically salah sehingga proses parsing pasti gagal. Tetapi, bagaimana dengan data yang logically salah?
</p>
<p>Secara default, <em>DateFormat</em> akan mentolerir hal ini dan dengan senang hati mencoba &#8216;membenarkan&#8217; input yang diterima. Pada contoh di atas, tanggal 35 Juni 2009 akan diterjemahkan menjadi 5 Juli 2009. Hal inilah yang bisa berakibat baik dan juga bisa berakibat buruk. Berakibat baik kalau programmer sudah mengerti akan perilaku ini dan memang sengaja membiarkan <em>DateFormat</em> melakukannya.<br />
  <br />Tetapi, kebanyakan coder (bukan programmer) akan terjebak dengan feature ini dan mengira bahwa input yang dikirim tidak bermasalah dan aplikasi berjalan baik-baik saja. Well, memang benar bahwa aplikasi berjalan baik-baik saja&#8230; tetapi ketidak-aware-an para coder akan berakibat fatal pada <em>Business Process</em>.<br />
  <br />Contoh mudah yang bisa kita karang : Misalkan sebuah aplikasi perbankan menjanjikan pembayaran bunga pada tanggal 25 setiap bulannya. Tetapi karena kesalahan ketik, user memasukkan tanggal 35. Karena aplikasi tidak mengeluarkan <em>Exception</em>, data tersebut tersimpan dengan mulus di database dan akibatnya pembayaran bunga molor 10 hari dari yang sudah dijanjikan. Satu atau dua nasabah dengan rekening yang kecil mungkin tidak terlalu ambil pusing. Tetapi bagaimana dengan nasabah dengan rekening yang besar yang memang setiap bulannya menanti-nanti tanggal 25??
</p>
<p>Untuk mengantisipasi hal ini, kita dapat &#8216;meminta&#8217; <em>DateFormat</em> untuk menghilangkan rasa toleransinya. Yaitu dengan menambahkan <code>setLenient(<strong><span style="color:rgb(127,0,85);">false</span></strong>)</code>. Dengan tidak adanya toleransi dari <em>DateFormat</em> maka input &#8220;20090635&#8243; akan ditolak dan aplikasi akan mengeluarkan <em>Exception</em> dan <em>Business Error</em> pun dapat dihindari. Di bawah ini adalah contoh kode program yang menghilangkan rasa toleransi dari <em>DateFormat</em> :<br />
  <br /><code><strong><span style="color:rgb(127,0,85);">&nbsp; public class</span></strong> Main {<strong><span style="color:rgb(127,0,85);"><br />
   &nbsp;&nbsp;&nbsp; public static void</span></strong> main(String... args) {<br />
   &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; String pattern = <span style="color:rgb(0,0,192);">"yyyyMMdd"</span>;<br />
   &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; DateFormat dateFormatter = <strong><span style="color:rgb(127,0,85);">new</span></strong> SimpleDateFormat(pattern);<br />
  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; dateFormatter.setLenient(</code><code><strong><span style="color:rgb(127,0,85);">false</span></strong></code><code>);<br />
   &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; String _35_Juni_09 = <span style="color:rgb(0,0,192);">"20090635"</span>;<strong><span style="color:rgb(127,0,85);"></p>
<p>   &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></strong></code><code><strong><span style="color:rgb(127,0,85);">try</span></strong> </code><code><strong><span style="color:rgb(127,0,85);"></span></strong>{<br />
   &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; System.<em><span style="color:rgb(0,0,192);">out</span></em>.println(dateFormatter.parse(_35_Juni_09));<br />
   &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; } <strong><span style="color:rgb(127,0,85);">catch</span></strong> (ParseException e) {<br />
   &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; e.printStackTrace();<br />
   &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br />
   &nbsp;&nbsp;&nbsp; }<br />
   &nbsp; }</code><br />
  </p>
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		<title>ADF Facelet (Quickstart)</title>
		<link>http://hjaya.wordpress.com/2009/03/24/adf-facelet-quickstart/</link>
		<comments>http://hjaya.wordpress.com/2009/03/24/adf-facelet-quickstart/#comments</comments>
		<pubDate>Tue, 24 Mar 2009 03:17:35 +0000</pubDate>
		<dc:creator>hjaya</dc:creator>
				<category><![CDATA[Java]]></category>

		<guid isPermaLink="false">http://hjaya.wordpress.com/?p=474</guid>
		<description><![CDATA[
Peroleh file-file berikut (dari http://facelets.dev.java.net):

adf-facelets.jar
jsf-facelets.jar
el-ri.jar
el-api.jar


Libatkan file-file tersebut dalam library JDeveloper, jangan lupa untuk melibatkan 3 (tiga) buah library dari JDeveloper sendiri, yaitu JSP Runtime dan ADF Faces Runtime. Seperti pada gambar di bawah ini :


Tambahkan kode berikut di dalam web.xml :
&#60;context-param&#62;
&#160;&#160;&#60;param-name&#62;oracle.adf.view.faces.ALTERNATE_VIEW_HANDLER&#60;/param-name&#62;
&#160;&#160;&#60;param-value&#62;com.sun.facelets.FaceletViewHandler&#60;/param-value&#62;
&#60;/context-param&#62;


       <img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=hjaya.wordpress.com&blog=5640339&post=474&subd=hjaya&ref=&feed=1" />]]></description>
			<content:encoded><![CDATA[<div class='snap_preview'><br /><ol>
<li>Peroleh file-file berikut (dari http://facelets.dev.java.net):
<ul>
<li>adf-facelets.jar</li>
<li>jsf-facelets.jar</li>
<li>el-ri.jar</li>
<li>el-api.jar</li>
</ul>
</li>
<li>Libatkan file-file tersebut dalam library JDeveloper, jangan lupa untuk melibatkan 3 (tiga) buah library dari JDeveloper sendiri, yaitu JSP Runtime dan ADF Faces Runtime. Seperti pada gambar di bawah ini :<br />
<img src="http://hjaya.files.wordpress.com/2009/03/libraries2.png" alt="Libraries" />
</li>
<li>Tambahkan kode berikut di dalam web.xml :<br />
<code><strong><span style="color:#7f0055;">&lt;context-param&gt;<br />
&nbsp;&nbsp;&lt;param-name&gt;</span></strong></code>oracle.adf.view.faces.ALTERNATE_VIEW_HANDLER<code><strong><span style="color:#7f0055;">&lt;/param-name&gt;<br />
&nbsp;&nbsp;&lt;param-value&gt;</span></strong></code>com.sun.facelets.FaceletViewHandler<code><strong><span style="color:#7f0055;">&lt;/param-value&gt;<br />
&lt;/context-param&gt;</span></strong></code>
</li>
</ol>
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		<title>Konversi integer jadi string</title>
		<link>http://hjaya.wordpress.com/2008/12/18/konversi-integer-jadi-string/</link>
		<comments>http://hjaya.wordpress.com/2008/12/18/konversi-integer-jadi-string/#comments</comments>
		<pubDate>Thu, 18 Dec 2008 09:33:10 +0000</pubDate>
		<dc:creator>hjaya</dc:creator>
				<category><![CDATA[Java]]></category>

		<guid isPermaLink="false">http://hjaya.wordpress.com/?p=465</guid>
		<description><![CDATA[Program berikut ini akan mengonversi int menjadi String.
Contohnya :

5 : lima
72 : tujuh puluh dua
341 : tiga ratus empat puluh satu
9999 : sembilan ribu sembilan ratus sembilan puluh sembilan
1000 : seribu
11 : sebelas
6523409 : enam juta lima ratus dua puluh tiga ribu empat ratus sembilan

Saya kira tidak perlu teori yang bermacam-macam, langsung saja kita lihat [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=hjaya.wordpress.com&blog=5640339&post=465&subd=hjaya&ref=&feed=1" />]]></description>
			<content:encoded><![CDATA[<div class='snap_preview'><br /><p>Program berikut ini akan mengonversi <em>int</em> menjadi <em>String</em>.</p>
<p>Contohnya :</p>
<ul>
<li>5 : lima</li>
<li>72 : tujuh puluh dua</li>
<li>341 : tiga ratus empat puluh satu</li>
<li>9999 : sembilan ribu sembilan ratus sembilan puluh sembilan</li>
<li>1000 : seribu</li>
<li>11 : sebelas</li>
<li>6523409 : enam juta lima ratus dua puluh tiga ribu empat ratus sembilan</li>
</ul>
<p>Saya kira tidak perlu teori yang bermacam-macam, langsung saja kita lihat contoh programnya :</p>
<p><code><strong><span style="color:#7f0055;">public class</span></strong> Say {<br />
&nbsp;&nbsp;<strong><span style="color:#7f0055;">public static</span></strong> String convert(<strong><span style="color:#7f0055;">int</span></strong> angka) <strong><span style="color:#7f0055;">throws</span></strong> Exception{<br />
&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">assert</span></strong> angka &gt;= 0;</p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka == 0) <strong><span style="color:#7f0055;">return</span></strong> <span style="color:#0000C0;">"nol"</span>;<br />
&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka == 1) <strong><span style="color:#7f0055;">return</span></strong> <span style="color:#0000C0;">"satu"</span>;<br />
&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka == 2) <strong><span style="color:#7f0055;">return</span></strong> <span style="color:#0000C0;">"dua"</span>;<br />
&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka == 3) <strong><span style="color:#7f0055;">return</span></strong> <span style="color:#0000C0;">"tiga"</span>;<br />
&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka == 4) <strong><span style="color:#7f0055;">return</span></strong> <span style="color:#0000C0;">"empat"</span>;<br />
&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka == 5) <strong><span style="color:#7f0055;">return</span></strong> <span style="color:#0000C0;">"lima"</span>;<br />
&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka == 6) <strong><span style="color:#7f0055;">return</span></strong> <span style="color:#0000C0;">"enam"</span>;<br />
&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka == 7) <strong><span style="color:#7f0055;">return</span></strong> <span style="color:#0000C0;">"tujuh"</span>;<br />
&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka == 8 ) <strong><span style="color:#7f0055;">return</span></strong> <span style="color:#0000C0;">"delapan"</span>;<br />
&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka == 9) <strong><span style="color:#7f0055;">return</span></strong> <span style="color:#0000C0;">"sembilan"</span>;<br />
&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka == 10) <strong><span style="color:#7f0055;">return</span></strong> <span style="color:#0000C0;">"sepuluh"</span>;<br />
&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka == 11) <strong><span style="color:#7f0055;">return</span></strong> <span style="color:#0000C0;">"sebelas"</span>;</p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka &lt; 20) <strong><span style="color:#7f0055;">return</span></strong> <em>convert</em>(angka - 10) + <span style="color:#0000C0;">" belas"</span>;</p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka &lt; 100){<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka % 10 &gt; 0) <strong><span style="color:#7f0055;">return</span></strong> <em>convert</em>(angka / 10) + <span style="color:#0000C0;">" puluh "</span> + <em>convert</em>(angka % 10);<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">else return</span></strong> <em>convert</em>(angka / 10) + <span style="color:#0000C0;">" puluh"</span>;<br />
&nbsp;&nbsp;&nbsp;&nbsp;}</p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka == 100) <strong><span style="color:#7f0055;">return</span></strong> <span style="color:#0000C0;">"seratus"</span>;</p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka &lt; 200) <strong><span style="color:#7f0055;">return</span></strong> <span style="color:#0000C0;">"seratus "</span> + <em>convert</em>(angka - 100);</p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka &lt; 1000){<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka % 100 &gt; 0) <strong><span style="color:#7f0055;">return</span></strong> <em>convert</em>(angka / 100) + <span style="color:#0000C0;">" ratus "</span> + <em>convert</em>(angka % 100);<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">else return</span></strong> <em>convert</em>(angka / 100) + <span style="color:#0000C0;">" ratus"</span>;<br />
&nbsp;&nbsp;&nbsp;&nbsp;}</p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka == 1000) <strong><span style="color:#7f0055;">return</span></strong> <span style="color:#0000C0;">"seribu"</span>;</p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka &lt; 2000) <strong><span style="color:#7f0055;">return</span></strong> <span style="color:#0000C0;">"seribu "</span> + <em>convert</em>(angka - 1000);</p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka &lt; 1000000){<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka % 1000 &gt; 0) <strong><span style="color:#7f0055;">return</span></strong> <em>convert</em>(angka / 1000) + <span style="color:#0000C0;">" ribu "</span> + <em>convert</em>(angka % 1000);<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">else return</span></strong> <em>convert</em>(angka / 1000) + <span style="color:#0000C0;">" ribu"</span>;<br />
&nbsp;&nbsp;&nbsp;&nbsp;}</p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka &lt; 1000000000){<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka % 1000000 &gt; 0) <strong><span style="color:#7f0055;">return</span></strong> <em>convert</em>(angka / 1000000) + <span style="color:#0000C0;">" juta "</span> + <em>convert</em>(angka % 1000000);<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">else return</span></strong> <em>convert</em>(angka / 1000000) + <span style="color:#0000C0;">" juta"</span>;<br />
&nbsp;&nbsp;&nbsp;&nbsp;}</p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka &lt;= 2147483647){<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> (angka % 1000000000 &gt; 0)<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">return</span></strong> <em>convert</em>(angka / 1000000000) + <span style="color:#0000C0;">" milyar "</span> + <em>convert</em>(angka % 1000000000);<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">else return</span></strong> <em>convert</em>(angka / 1000000000) + <span style="color:#0000C0;">" milyar"</span>;<br />
&nbsp;&nbsp;&nbsp;&nbsp;}</p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">throw new</span></strong> Exception(<span style="color:#0000C0;">"Not Supported Yet"</span>);<br />
&nbsp;&nbsp;}</p>
<p>&nbsp;&nbsp;<strong><span style="color:#7f0055;">public static void</span></strong> main(String[] args) {<br />
&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">try</span></strong> {<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;System.<em><span style="color:#0000C0;">out</span></em>.println(Say.<em>convert</em>(2147483647));<br />
&nbsp;&nbsp;&nbsp;&nbsp;}<br />
&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">catch</span></strong> (Exception e) {System.<em><span style="color:#0000C0;">out</span></em>.println(e.getMessage());}<br />
&nbsp;&nbsp;}<br />
}</code></p>
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		<title>Insertion Sort</title>
		<link>http://hjaya.wordpress.com/2008/12/15/insertion-sort/</link>
		<comments>http://hjaya.wordpress.com/2008/12/15/insertion-sort/#comments</comments>
		<pubDate>Mon, 15 Dec 2008 09:32:45 +0000</pubDate>
		<dc:creator>hjaya</dc:creator>
				<category><![CDATA[Sorting Algorithm]]></category>

		<guid isPermaLink="false">http://hjaya.wordpress.com/?p=451</guid>
		<description><![CDATA[Pada prinsipnya, Insertion Sort mengambil suatu elemen dari array lalu &#8220;menyisipkannya&#8221; di tempat yang benar. Proses dilakukan terus menerus sampai seluruh elemen telah berada di tempat yang benar.
Coba perhatikan ilustrasi di bawah ini..
( 5 1 4 2 8 ) -&#62; ( 1 5 4 2 8 ) karena 5 &#62; 1
( 1 5 4 2 [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=hjaya.wordpress.com&blog=5640339&post=451&subd=hjaya&ref=&feed=1" />]]></description>
			<content:encoded><![CDATA[<div class='snap_preview'><br /><p>Pada prinsipnya, Insertion Sort mengambil suatu elemen dari array lalu &#8220;menyisipkannya&#8221; di tempat yang benar. Proses dilakukan terus menerus sampai seluruh elemen telah berada di tempat yang benar.</p>
<p>Coba perhatikan ilustrasi di bawah ini..</p>
<p>( 5 <strong>1</strong> 4 2 8 ) -&gt; ( 1 5 4 2 8 ) karena 5 &gt; 1<br />
( 1 5 <strong>4</strong> 2 8 ) -&gt; ( 1 4 5 2 8 ) karena 5 &gt; 4<br />
( 1 4 5 <strong>2</strong> 8 ) -&gt; ( 1 4 2 5 8 ) karena 5 &gt; 2, -&gt; ( 1 2 4 5 8 ) karena 4 &gt; 2<br />
( 1 2 4 5 <strong>8</strong> ) -&gt; ( 1 2 4 5 8 ) </p>
<p>Berikut ini saya sediakan implementasi dari Insertion Sort dalam java :</p>
<p><code><strong><span style="color:#7f0055;">public class</span></strong> Sort {<br />
&nbsp;&nbsp;<strong><span style="color:#7f0055;">private</span></strong> Sort(){}</p>
<p>&nbsp;&nbsp;<strong><span style="color:#7f0055;">public static</span></strong> &lt;T <strong><span style="color:#7f0055;">extends</span></strong> Comparable&gt; T[] insertion(T[] arr, <strong><span style="color:#7f0055;">boolean</span></strong> isAscending){<br />
&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">for</span></strong> (<strong><span style="color:#7f0055;">int</span></strong> i = 1; i &lt; arr.<span style="color:#0000C0;">length</span>; i++) {<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">int</span></strong> j = i;<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;T t = arr[i];<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">while</span></strong> ((j &gt; 0) &amp;&amp; (<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;isAscending &amp;&amp; (arr[j - 1].compareTo(t) &gt; 0)  ||<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;!isAscending &amp;&amp; (arr[j - 1].compareTo(t) &lt; 0))) {<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;arr[j] = arr[j - 1];<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;j--;<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;arr[j] = t;<br />
&nbsp;&nbsp;&nbsp;&nbsp;}</p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">return</span></strong> arr;<br />
&nbsp;&nbsp;}</p>
<p>&nbsp;&nbsp;<strong><span style="color:#7f0055;">public static</span></strong>  T[] insertion(T[] arr, Comparator comparator, <strong><span style="color:#7f0055;">boolean</span></strong> isAscending){<br />
&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">for</span></strong> (<strong><span style="color:#7f0055;">int</span></strong> i = 1; i &lt; arr.length; i++) {<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">int</span></strong> j = i;<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;T t = arr[i];<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">while</span></strong> ((j &gt; 0) &amp;&amp; (<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;isAscending &amp;&amp; (comparator.compare(arr[j - 1], t) &gt; 0)  ||<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;!isAscending &amp;&amp; (comparator.compare(arr[j - 1], t) &lt; 0))) {<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;arr[j] = arr[j - 1];<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;j--;<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;arr[j] = t;<br />
&nbsp;&nbsp;&nbsp;&nbsp;}</p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">return</span></strong> arr;<br />
&nbsp;&nbsp;}<br />
}</code></p>
<p>Untuk eksekusi kode di atas, silahkan lihat post Bubble Sort.</p>
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		<title>Selection Sort</title>
		<link>http://hjaya.wordpress.com/2008/12/14/selection-sort/</link>
		<comments>http://hjaya.wordpress.com/2008/12/14/selection-sort/#comments</comments>
		<pubDate>Sun, 14 Dec 2008 13:49:16 +0000</pubDate>
		<dc:creator>hjaya</dc:creator>
				<category><![CDATA[Sorting Algorithm]]></category>

		<guid isPermaLink="false">http://hjaya.wordpress.com/?p=298</guid>
		<description><![CDATA[Prinsip utama dari Selection Sort adalah mencari nilai terkecil dari suatu array dan menempatkannya sebagai elemen yang paling depan dengan cara menukar elemen tersebut dengan elemen yang paling depan. Setelah ditempatkan di paling depan, algoritma kembali melakukan iterasi, tetapi kali elemen yang paling depan tidak diikutkan karena sudah &#8220;terurut&#8221; dengan baik. Begitu seterusnya..
Untuk mode descending, [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=hjaya.wordpress.com&blog=5640339&post=298&subd=hjaya&ref=&feed=1" />]]></description>
			<content:encoded><![CDATA[<div class='snap_preview'><br /><p>Prinsip utama dari Selection Sort adalah mencari nilai terkecil dari suatu array dan menempatkannya sebagai elemen yang paling depan dengan cara menukar elemen tersebut dengan elemen yang paling depan. Setelah ditempatkan di paling depan, algoritma kembali melakukan iterasi, tetapi kali elemen yang paling depan tidak diikutkan karena sudah &#8220;terurut&#8221; dengan baik. Begitu seterusnya..</p>
<blockquote><p>Untuk mode <em>descending</em>, nilai yang dicari adalah nilai terbesar.</p></blockquote>
<p>Untuk lebih jelasnya silahkan perhatikan dua buah ilustrasi di bawah ini (ascending)</p>
<ol>
<li>Ilustrasi dengan angka (dari Wikipedia)
<p>( <em>5</em> <strong>1</strong> 4 2 8 ) -&gt; ( <strong>1</strong> <em>5</em> 4 2 8 ) Nilai min : 1, Target pertukaran : 5<br />
( 1 <em>5</em> 4 <strong>2</strong> 8 ) -&gt; ( 1 <strong>2</strong> 4 <em>5</em> 8 ) Nilai min : 2, Target pertukaran : 5<br />
( 1 2 <strong><em>4</em></strong> 5 8 ) -&gt; ( 1 2 <strong><em>4</em></strong> 5 8 ) Nilai min : 4, Target pertukaran : 4<br />
( 1 2 4 <strong><em>5</em></strong> 8 ) -&gt; ( 1 2 4 <strong><em>5</em></strong> 8 ) Nilai min : 5, Target pertukaran : 5</p>
</li>
<li>Ilustrasi dengan gambar (refresh browser anda jika gambar tidak bergerak)
<p><img src="http://hjaya.files.wordpress.com/2008/12/selection-sort-animation.gif" />
</li>
</ol>
<p>Berikut ini saya sediakan implementasi Selection Sort dalam Java..</p>
<p><code><strong><span style="color:#7f0055;">public class</span></strong> Sort {<br />
&nbsp;&nbsp;<strong><span style="color:#7f0055;">private</span></strong> Sort(){}</p>
<p>&nbsp;&nbsp;<strong><span style="color:#7f0055;">public static</span></strong> &lt;T <strong><span style="color:#7f0055;">extends</span></strong> Comparable&gt; T[] selection(T[] arr, <strong><span style="color:#7f0055;">boolean</span></strong> isAscending){<br />
&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">for</span></strong> (<strong><span style="color:#7f0055;">int</span></strong> i = 0; i &lt; arr.<span style="color:#0000C0;">length</span> - 1; i++){<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">int</span></strong> min = i;<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">for</span></strong> (<strong><span style="color:#7f0055;">int</span></strong> j = i + 1; j &lt; arr.<span style="color:#0000C0;">length</span>; j++)<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> ((isAscending &amp;&amp; (arr[min].compareTo(arr[j]) &gt; 0)) ||<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(!isAscending &amp;&amp; (arr[min].compareTo(arr[j]) &lt; 0)))<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;min = j;</p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;T t = arr[i];<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;arr[i] = arr[min];<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;arr[min] = t;<br />
&nbsp;&nbsp;&nbsp;&nbsp;}</p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">return</span></strong> arr;<br />
&nbsp;&nbsp;}</p>
<p>&nbsp;&nbsp;<strong><span style="color:#7f0055;">public static</span></strong>  T[] selection(T[] arr, Comparator comparator, <strong><span style="color:#7f0055;">boolean</span></strong> isAscending){<br />
&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">for</span></strong> (<strong><span style="color:#7f0055;">int</span></strong> i = 0; i &lt; arr.<span style="color:#0000C0;">length</span> - 1; i++){<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">int</span></strong> min = i;<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">for</span></strong> (<strong><span style="color:#7f0055;">int</span></strong> j = i + 1; j &lt; arr.<span style="color:#0000C0;">length</span>; j++)<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">if</span></strong> ((isAscending &amp;&amp; (comparator.compare(arr[min], arr[j]) &gt; 0)) ||<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(!isAscending &amp;&amp; (comparator.compare(arr[min], arr[j]) &lt; 0)))<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;min = j;</p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;T t = arr[i];<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;arr[i] = arr[min];<br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;arr[min] = t;<br />
&nbsp;&nbsp;&nbsp;&nbsp;}</p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;<strong><span style="color:#7f0055;">return</span></strong> arr;<br />
&nbsp;&nbsp;}<br />
}</code></p>
<p>Untuk eksekusi kode di atas, silahkan lihat post Bubble Sort.</p>
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		<item>
		<title>Yahoo Emoticon</title>
		<link>http://hjaya.wordpress.com/2008/12/14/yahoo-emoticon/</link>
		<comments>http://hjaya.wordpress.com/2008/12/14/yahoo-emoticon/#comments</comments>
		<pubDate>Sun, 14 Dec 2008 01:56:51 +0000</pubDate>
		<dc:creator>hjaya</dc:creator>
				<category><![CDATA[Uncategorized]]></category>

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		<description><![CDATA[Ga ada ide mau nulis apa.. jadinya cuman naruh-naruh yahoo emoticon ajah.. 



: )
happy
&#160;

: (
sad
&#160;



; )
winking
&#160;

: D
big grin
&#160;



; ; )
batting eyelashes
&#160;

&#62; : D &#60;
big hug
&#160;



: &#8221; &#62;
blushing
&#160;

: &#8211; /
confused
&#160;



: x
love struck
&#160;

: P
tongue
&#160;



: &#8211; *
kiss
&#160;

= ( (
broken heart
&#160;



: &#8211; O
surprise
&#160;

X (
angry
&#160;



: &#62;
smug
&#160;

B &#8211; )
cool
&#160;



: &#8211; S
worried
&#160;

# : &#8211; S
whew!
&#160;



&#62; : )
devil
&#160;

: ( (
crying
&#160;



: ) )
laughing
&#160;

: &#124;
straight [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=hjaya.wordpress.com&blog=5640339&post=76&subd=hjaya&ref=&feed=1" />]]></description>
			<content:encoded><![CDATA[<div class='snap_preview'><br /><p>Ga ada ide mau nulis apa.. jadinya cuman naruh-naruh yahoo emoticon ajah.. </p>
<table border="0" cellspacing="10">
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/11/happy.gif" /></td>
<td>: )</td>
<td><em>happy</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/11/sad.gif" /></td>
<td>: (</td>
<td><em>sad</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/11/winking.gif" /></td>
<td>; )</td>
<td><em>winking</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/11/biggrin.gif" /></td>
<td>: D</td>
<td><em>big grin</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/11/batting-eyelashes.gif" /></td>
<td>; ; )</td>
<td><em>batting eyelashes</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/11/big-hug.gif" /></td>
<td>&gt; : D &lt;</td>
<td><em>big hug</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/11/blushing.gif" /></td>
<td>: &#8221; &gt;</td>
<td><em>blushing</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/11/confused.gif" /></td>
<td>: &#8211; /</td>
<td><em>confused</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/11/love-struck.gif" /></td>
<td>: x</td>
<td><em>love struck</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/11/tongue.gif" /></td>
<td>: P</td>
<td><em>tongue</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/11/11.gif" /></td>
<td>: &#8211; *</td>
<td><em>kiss</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/11/12.gif" /></td>
<td>= ( (</td>
<td><em>broken heart</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/11/13.gif" /></td>
<td>: &#8211; O</td>
<td><em>surprise</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/11/14.gif" /></td>
<td>X (</td>
<td><em>angry</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/11/15.gif?w=18" /></td>
<td>: &gt;</td>
<td><em>smug</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/11/16.gif" /></td>
<td>B &#8211; )</td>
<td><em>cool</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/11/17.gif" /></td>
<td>: &#8211; S</td>
<td><em>worried</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/11/18.gif" /></td>
<td># : &#8211; S</td>
<td><em>whew!</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/11/19.gif" /></td>
<td>&gt; : )</td>
<td><em>devil</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/11/20.gif" /></td>
<td>: ( (</td>
<td><em>crying</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/11/21.gif" /></td>
<td>: ) )</td>
<td><em>laughing</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/11/22.gif" /></td>
<td>: |</td>
<td><em>straight face</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/11/23.gif" /></td>
<td>/ : )</td>
<td><em>raised eyebrows</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/11/24.gif" /></td>
<td>= ) )</td>
<td><em>rolling on the floor laugh</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/11/25.gif" /></td>
<td>O : &#8211; )</td>
<td><em>angel</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/11/26.gif" /></td>
<td>: &#8211; B</td>
<td><em>nerd</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/11/27.gif" /></td>
<td>= ;</td>
<td><em>talk to the hand</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/11/28.gif" /></td>
<td>I &#8211; )</td>
<td><em>sleepy</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/11/29.gif" /></td>
<td>8 &#8211; |</td>
<td><em>rolling eyes</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/11/30.gif" /></td>
<td>L &#8211; )</td>
<td><em>loser</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/11/31.gif" /></td>
<td>: &#8211; &amp;</td>
<td><em>sick</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/11/32.gif" /></td>
<td>: &#8211; $</td>
<td><em>don&#8217;t tell anyone</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/11/33.gif" /></td>
<td>[ - (</td>
<td><em>no talking</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/11/34.gif" /></td>
<td>: O )</td>
<td><em>clown</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/11/35.gif" /></td>
<td>8 - }</td>
<td><em>silly</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/11/36.gif" /></td>
<td>&lt; : - P</td>
<td><em>party</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/11/37.gif" /></td>
<td>( : |</td>
<td><em>yawn</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/11/38.gif" /></td>
<td>= P ~</td>
<td><em>drooling</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/11/39.gif" /></td>
<td>: - ?</td>
<td><em>thinking</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/11/40.gif" /></td>
<td># - o</td>
<td><em>d'oh</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/11/41.gif" /></td>
<td>= D &gt;</td>
<td><em>applause</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/11/42.gif" /></td>
<td>: - S S</td>
<td><em>nail biting</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/11/43.gif" /></td>
<td>@ - )</td>
<td><em>hypnotized</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/11/44.gif" /></td>
<td>: ^ o</td>
<td><em>liar</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/11/45.gif" /></td>
<td>: - w</td>
<td><em>waiting</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/11/46.gif" /></td>
<td>: - &lt;</td>
<td><em>sigh</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/11/47.gif" /></td>
<td>&gt; : P</td>
<td><em>phbbbbt</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/11/48.gif" /></td>
<td>&lt; ) : )</td>
<td><em>cowboy</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/12/49.gif" /></td>
<td>: @ )</td>
<td><em>pig</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/12/50.gif" /></td>
<td>3 : - O</td>
<td><em>cow</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/12/51.gif" /></td>
<td>: ( | )</td>
<td><em>monkey</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/12/52.gif" /></td>
<td>~ : &gt;</td>
<td><em>chicken</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/12/53.gif" /></td>
<td>@ } ; -</td>
<td><em>rose</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/12/54.gif" /></td>
<td>% % -</td>
<td><em>good luck</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/12/55.gif" /></td>
<td>* * = =</td>
<td><em>flag</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/12/56.gif" /></td>
<td>( ~ ~ )</td>
<td><em>pumpkin</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/12/57.gif" /></td>
<td>~ O )</td>
<td><em>coffee</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/12/58.gif" /></td>
<td>* - : )</td>
<td><em>idea</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/12/59.gif" /></td>
<td>8 - X</td>
<td><em>skull</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/12/60.gif" /></td>
<td>= : )</td>
<td><em>bug</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/12/61.gif" /></td>
<td>&gt; - )</td>
<td><em>alien</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/12/62.gif" /></td>
<td>: - L</td>
<td><em>frustrated</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/12/63.gif" /></td>
<td>[ - O &lt;</td>
<td><em>praying</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/12/64.gif" /></td>
<td>$ - )</td>
<td><em>money eyes</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/12/65.gif" /></td>
<td>: - "</td>
<td><em>whistling</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/12/66.gif" /></td>
<td>b - (</td>
<td><em>feeling beat up</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/12/67.gif" /></td>
<td>: ) &gt; -</td>
<td><em>peace sign</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/12/68.gif" /></td>
<td>[ - X</td>
<td><em>shame on you</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/12/69.gif" /></td>
<td>\ : D /</td>
<td><em>dancing</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/12/70.gif" /></td>
<td>&gt; : /</td>
<td><em>bring it on</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/12/71.gif" /></td>
<td>; ) )</td>
<td><em>hee hee</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/12/72.gif" /></td>
<td>o - &gt;</td>
<td><em>hiro</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/12/73.gif" /></td>
<td>o = &gt;</td>
<td><em>billy</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/12/74.gif" /></td>
<td>o - +</td>
<td><em>april</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/12/75.gif" /></td>
<td>( % )</td>
<td><em>yin yang</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/12/76.gif" /></td>
<td>: - @</td>
<td><em>chatterbox</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/12/77.gif" /></td>
<td>^ : ) ^</td>
<td><em>not worthy</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/12/78.gif" /></td>
<td>: - j</td>
<td><em>oh go on</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/12/79.gif" /></td>
<td>( * )</td>
<td><em>star</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/12/80.gif" /></td>
<td>: ) ]</td>
<td><em>on the phone</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/12/81.gif" /></td>
<td>: &#8211; c</td>
<td><em>call me</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/12/82.gif" /></td>
<td>~ X (</td>
<td><em>at wits&#8217; end</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/12/83.gif" /></td>
<td>: &#8211; h</td>
<td><em>wave</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/12/84.gif" /></td>
<td>: &#8211; t</td>
<td><em>time out</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/12/85.gif" /></td>
<td>8 &#8211; &gt;</td>
<td><em>day dreaming</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/12/86.gif" /></td>
<td>: &#8211; ? ?</td>
<td><em>i don&#8217;t know</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/12/87.gif" /></td>
<td>% &#8211; (</td>
<td><em>not listening</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/12/88.gif" /></td>
<td>: o 3</td>
<td><em>puppy dog eyes</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/12/89.gif" /></td>
<td>X _ X</td>
<td><em>i don&#8217;t wanna see</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/12/90.gif" /></td>
<td>: ! !</td>
<td><em>hurry up!</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/12/91.gif" /></td>
<td>\ m /</td>
<td><em>rock on!</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/12/92.gif" /></td>
<td>: &#8211; q</td>
<td><em>thumbs down</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/12/93.gif" /></td>
<td>: &#8211; b d</td>
<td><em>thumbs up</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/12/94.gif" /></td>
<td>^ # ( ^</td>
<td><em>it wasn&#8217;t me</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/12/95.gif" /></td>
<td>: b z</td>
<td><em>bee</em></td>
<td width="25">&nbsp;</td>
<td><img src="http://hjaya.files.wordpress.com/2008/12/96.gif" /></td>
<td>: a r !</td>
<td><em>pirate</em></td>
<td width="25">&nbsp;</td>
</tr>
<tr align="center" valign="middle">
<td><img src="http://hjaya.files.wordpress.com/2008/12/97.gif" /></td>
<td>[ . . ]</td>
<td><em>transformer</em></td>
<td width="25">&nbsp;</td>
<td colspan="4"></td>
</tr>
</table>
<p>Tidak semua emoticon yang ada di atas dapat anda pakai. Ada beberapa emoticon yang hanya bisa digunakan di Yahoo Messenger versi web</p>
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