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<TITLE>The Quintessential Java Application (Java Developers Almanac Example)
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<h1>The Java Developers Almanac 1.4</h1>
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    <B><A HREF="../java.lang/pkg.html">java.lang</A></B><font color="#666666" class="xsmall-font">
        &nbsp;[58 examples]
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  <h3>e48. The Quintessential Java Application</h3>

The parameters to the application are made available in <code>args</code>.
This example simply prints out <code>Hello World!</code>.


<pre>    public class <font color="#0066ff"><i>BasicApp</i></font> {
        public static void main(String[] args) {
            // Process each parameter
            for (int i=0; i&lt;args.length; i++) {
                // process args[i];
            }
    
            // Output a message to the console
            System.out.println(<font color="#0066ff"><i>"Hello World!"</i></font>);
        }
    }
</pre>
Here's the command to run the program:

<pre>    &gt; java BasicApp <font color="#0066ff"><i>param1 param2 ...</i></font>

</pre>
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            &nbsp;<b>Related Examples</b></font></td>
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e49. <a class="eglink" href="Exit.html?l=rel">
    Terminating the Application
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e50. <a class="eglink" href="ExitHook.html?l=rel">
    Determining When the Application Is About to Exit
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e51. <a class="eglink" href="ElapsedTime.html?l=rel">
    Computing Elapsed Time
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e52. <a class="eglink" href="LoadNative.html?l=rel">
    Loading Native Code
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e53. <a class="eglink" href="Sortable.html?l=rel">
    Implementing a Class That Can Be Sorted
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e54. <a class="eglink" href="Redirect.html?l=rel">
    Redirecting Standard Output, and Error
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<br>

e55. <a class="eglink" href="GetHeapSize.html?l=rel">
    Getting the Size of the Heap
</a>
<br>


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        See also: 
<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#Arrays">
    Arrays
</a>&nbsp;&nbsp;

<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#Assertions">
    Assertions
</a>&nbsp;&nbsp;

<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#Classes">
    Classes
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<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#Commands">
    Commands
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<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#Numbers">
    Numbers
</a>&nbsp;&nbsp;

<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#Objects">
    Objects
</a>&nbsp;&nbsp;

<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#Strings">
    Strings
</a>&nbsp;&nbsp;

<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#System%20Properties">
    System Properties
</a>&nbsp;&nbsp;

<a class="eglink" href="/egs/java.lang/pkg.html?l=rel#Threads">
    Threads
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