exception in thread 'main' java.lang.NoClassDefFoundError:
<p>The following program is throwing error:</p>

<pre><code>public class HelloWorld {
    public static void main(String args[]) {
        System.out.println("Hello World!"); 
    }
}

CLASSPATH C:\Program Files\Java\jdk1.6.0_18\bin\

Path C:\Program Files\Java\jdk1.6.0_18\bin\

JAVAHOME C:\Program Files\Java\jdk1.6.0_18\bin
</code></pre>

<p>Can you please tell me the root cause?</p>
