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  #1  
Old 20th January 2012, 05:09 AM
ameet Offline
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Join Date: Jan 2012
Location: india
Posts: 6
windows_xp_2003firefox
Java Program

I am new user on fedora (release: 8 codename: werewolf kernel linux 2.6.23.1-42.fc8 GNOME 2.20.1),
while doing java program got error,

Error:
Exception in thread "main" java.lang.UnsupportedClassVersionError: HelloWorld : Unsupported major.minor version 51.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java :638)
at java.security.SecureClassLoader.defineClass(Secure ClassLoader.java:143)
at java.net.URLClassLoader.defineClass(URLClassLoader .java:281)
at java.net.URLClassLoader.access$000(URLClassLoader. java:74)
at java.net.URLClassLoader$1.run(URLClassLoader.java: 216)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.j ava:209)
at java.lang.ClassLoader.loadClass(ClassLoader.java:3 24)
at sun.misc.Launcher$AppClassLoader.loadClass(Launche r.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 69)
at java.lang.ClassLoader.loadClassInternal(ClassLoade r.java:337)
Error: Could not find the main class.
Error: A JNI error has occurred, please check your installation and try again


program:
public class HelloWorld {

public static void main(String[] args) {
System.out.println("Hello, World");
}

}


this error is there in other programs also,
please tell me what is wrong.
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  #2  
Old 21st January 2012, 02:19 PM
ameet Offline
Registered User
 
Join Date: Jan 2012
Location: india
Posts: 6
windows_xp_2003chrome
Re: Java Program

This problem is solved ,
i am not sure but what i did is , i installed the jdk again .
this problem was may be because of not installing jdk properly .
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