Swing apps doesn't run

Question

I have a problem in using swing. I don\'t know what is the cause of this but i\'m just trying to create a simple frame app using swing at it give me a lot of error.

Answer 1

This code works for me:

package test;

import javax.swing.JFrame;
public class Test {

    public static void main(String[] args) {
        JFrame frame = new JFrame();
        frame.setVisible(true);
        frame.setSize(100,200);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
}

I only see a difference at

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

where I added the frame. However your stacktrace looks like there's another error, so first try this and if it still don't work, give us a bit more code to look at.