The JAR file not open(it open with the winRAR)?

Posted by Tofiq on Stack Overflow See other posts from Stack Overflow or by Tofiq
Published on 2011-01-15T20:59:36Z Indexed on 2011/01/15 22:53 UTC
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Hi I'm working with the netbeans and I create a jar file, but it not opened with the java. When I try to open it opened with the winRAR program. This is the MainClass code:

public class MainClass {
    public static void main(String arg[]){
    Ludec cal=new Ludec();
           cal.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
           cal.setSize( 314, 380 ); 
           cal.setLocation(600,150);
           cal.setVisible( true ); 
    }

}

It run in the cmd by this command: java -jar "C:\Users\Tofiq\Documents\NetBeansProjects\JavaApplication1\dist\JavaApplication1.jar" but not run by clicking and its error: alt text

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