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    1 public class test
    2 {
    3   public static void main(String args[])
    4  
    5   {
    6  
    7     System.out.println("A new jdk test !");
    8  
    9   }
    10 }


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Exception in thread "main" java.lang.NoClassDefFoundError: test/java
Caused by: java.lang.ClassNotFoundException: test.java
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
Could not find the main class: test.java.  Program will exit.

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