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public class ConverterClient {

  public static void main(String[] args) {

    try {
      Context initial = new InitialContext();
      Object objref = initial.lookup
        ("java:comp/env/ejb/SimpleConverter");

      ConverterHome home = 
        (ConverterHome)PortableRemoteObject.narrow(objref, 
                            ConverterHome.class);

      Converter currencyConverter = home.create();

      BigDecimal param = new BigDecimal ("100.00");
      BigDecimal amount =
        currencyConverter.dollarToYen(param);
      System.out.println(amount);
      amount = currencyConverter.yenToEuro(param);
      System.out.println(amount);

      System.exit(0);

    } catch (Exception ex) {
      System.err.println("Caught an unexpected exception!");
      ex.printStackTrace();
    }
  } 
}<a name="wp79939"> </a>
</pre></div>
<a name="wp79940"> </a><h3 class="pHeading2">
Compiling the Application Client
</h3>
<a name="wp79941"> </a><p class="pBody">
The application client files are compiled at the same time as the enterprise bean files, as described in <a  href="EJB3.html#wp79846">Compiling the Source Files</a>.
</p>
<a name="wp79947"> </a><h3 class="pHeading2">
Packaging the J2EE Application Client
</h3>
<a name="wp79948"> </a><p class="pBody">
To package an application client component, you run the New Application Client wizard of the <code class="cCode">deploytool</code>. During this process the wizard performs the following tasks.
</p>
<div class="pSmartList1"><ul class="pSmartList1">
<a name="wp79949"> </a><div class="pSmartList1"><li>Creates the application client's deployment descriptor</li></div>
<a name="wp79950"> </a><div class="pSmartList1"><li>Puts the deployment descriptor and client files into a JAR file</li></div>
<a name="wp81117"> </a><div class="pSmartList1"><li>Adds the JAR file to the application's <code class="cCode">ConverterApp.ear</code> file</li></div>
</ul></div>
<a name="wp79954"> </a><p class="pBody">
To start the New Application Client wizard, select File<span style="font-family: Symbol"><img src="images/arrwrite.gif" border="0" alt="Right Arrow"></span>New<span style="font-family: Symbol"><img src="images/arrwrite.gif" border="0" alt="Right Arrow"></span>Application Client. The wizard displays the following dialog boxes.
</p>
<div class="pSmartList1"><ol type="1" class="pSmartList1">
<a name="wp79955"> </a><div class="pSmartList1"><li>Introduction dialog box </li></div>
<div class="pSmartList2"><ol type="a" class="pSmartList2">
<a name="wp79956"> </a><div class="pSmartList2"><li>Read the explanatory text for an overview of the wizard's features. </li></div>
<a name="wp79957"> </a><div class="pSmartList2"><li>Click Next.</li></div>
</ol></div>
<a name="wp79958"> </a><div class="pSmartList1"><li> JAR File Contents dialog box</li></div>
<div class="pSmartList2"><ol type="a" class="pSmartList2">
<a name="wp80802"> </a><div class="pSmartList2"><li>Select the button labelled Create New AppClient Module in Application.</li></div>
<a name="wp81129"> </a><div class="pSmartList2"><li>In the combo box below this button, select <code class="cCode">ConverterApp</code>.</li></div>
<a name="wp81130"> </a><div class="pSmartList2"><li>In the AppClient Display Name field, enter <code class="cCode">ConverterClient</code>.</li></div>
<a name="wp79960"> </a><div class="pSmartList2"><li>Click Edit.</li></div>
<a name="wp79961"> </a><div class="pSmartList2"><li>In the tree under Available Files, locate this directory:</li></div>
<a name="wp81539"> </a><p class="pBodyRelative">
<code class="cCode">&lt;</code><code class="cVariable">INSTALL</code><code class="cCode">&gt;/j2eetutorial14/examples/ejb/converter/build/</code> 
</p>
<a name="wp79962"> </a><div class="pSmartList2"><li>Select the <code class="cCode">ConverterClient.class</code> file</li></div>
<a name="wp80822"> </a><div class="pSmartList2"><li>Click Add. </li></div>
<a name="wp79963"> </a><div class="pSmartList2"><li>Click OK.</li></div>
<a name="wp79964"> </a><div class="pSmartList2"><li>Click Next.</li></div>
</ol></div>
<a name="wp79965"> </a><div class="pSmartList1"><li>General dialog box </li></div>
<div class="pSmartList2"><ol type="a" class="pSmartList2">
<a name="wp79966"> </a><div class="pSmartList2"><li>In the Main Class combo box, select <code class="cCode">ConverterClient</code>.</li></div>
<a name="wp79969"> </a><div class="pSmartList2"><li>Click Next.</li></div>
<a name="wp79970"> </a><div class="pSmartList2"><li>Click Finish.</li></div>
</ol></div>
</ol></div>
<a name="wp79972"> </a><h3 class="pHeading2">
Specifying the Application Client's Enterprise Bean Reference
</h3>
<a name="wp79974"> </a><p class="pBody">
When it invokes the <code class="cCode">lookup</code> method, the <code class="cCode">ConverterClient</code> refers to the home of an enterprise bean:
</p>
<div class="pPreformattedRelative"><pre class="pPreformattedRelative">
Object objref = myEnv.lookup(&quot;ejb/SimpleConverter&quot;);<a name="wp79975"> </a>
</pre></div>
<a name="wp79976"> </a><p class="pBody">
You specify this reference as follows.
</p>
<div class="pSmartList1"><ol type="1" class="pSmartList1">
<a name="wp79977"> </a><div class="pSmartList1"><li>In the tree, select <code class="cCode">ConverterClient</code>.</li></div>
<a name="wp79978"> </a><div class="pSmartList1"><li>Select the EJB Refs tab.</li></div>
<a name="wp79979"> </a><div class="pSmartList1"><li>Click Add.</li></div>
<a name="wp79980"> </a><div class="pSmartList1"><li>In the Coded Name field, enter <code class="cCode">ejb/SimpleConverter</code>.</li></div>
<a name="wp79981"> </a><div class="pSmartList1"><li>In the EJB Type field, select Session.</li></div>
<a name="wp79982"> </a><div class="pSmartList1"><li>In the Interfaces field, select Remote.</li></div>
<a name="wp79983"> </a><div class="pSmartList1"><li>In the Home Interface column, field converter.<code class="cCode">ConverterHome</code>.</li></div>
<a name="wp79984"> </a><div class="pSmartList1"><li>In the Local/Remote Interface field, enter <code class="cCode">converter.Converter</code>.</li></div>
<a name="wp80851"> </a><div class="pSmartList1"><li>In the Enterprise Bean Name field, enter <code class="cCode">ConverterEJB</code>.</li></div>
<a name="wp80849"> </a><div class="pSmartList1"><li>Click OK.</li></div>
</ol></div>
    </blockquote>

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