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Thread: in ecplise could not find the main class.program will exit.

  1. #1
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    Exclamation in ecplise could not find the main class.program will exit.

    hi
    i am beginner to java .
    i have use java 1.7
    public class samp {
    	public static void main(String[] args) {
    		System.out.println("hi");
    	}
     
    }
    i run above program in command prompt properly. but ecplise indego virtual machine launcher display the error as follows:

    "could not find the main class.program will exit."



    java.lang.UnsupportedClassVersionError: jj : Unsupported major.minor version 51.0
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(Unknown Source)
    at java.security.SecureClassLoader.defineClass(Unknow n Source)
    at java.net.URLClassLoader.defineClass(Unknown Source)
    at java.net.URLClassLoader.access$000(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClassInternal(Unknown Source)

    please help me ......
    thanks in advance
    Last edited by helloworld922; August 12th, 2012 at 10:47 AM. Reason: please use [code] tags


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: in ecplise could not find the main class.program will exit.

    Unsupported major.minor version 51.0
    You get that error when you compile with version 1.7 and try to execute the class with an earlier version of java.
    If you don't understand my answer, don't ignore it, ask a question.

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