Debug the following program: public class Test { static JFrame jframe = new JFra

Question

Debug the following program:

public class Test {
static JFrame jframe = new JFrame("JFRAME Sample");
public static void constructFrame() {
jframe.setSize(500, 400);
jframe.getContentPane().setLayout(new FlowLayout());
WindowListener wListener = new WindowAdapter() {

public void windowClosing(WindowEvent e) {
System.exit(0);
}
};
jframe.addWindowListener(wListener);
}
  
  

public static void main(String[] args) {
setupJFrame();
JButton jButton = new JButton("Press the Button");
jframe.getContentPane().add(jButton);
jframe.setVisible(true);
}

}

Explanation / Answer

You have written method as constructFrame().

In main method you are calling method setupJFrame() which is not defined. Change that method to constructFrame()

Your program will run.

I am pasting the class for your reference:

package com.test.example;

import java.awt.FlowLayout;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;

import javax.swing.JButton;
import javax.swing.JFrame;

public class Test {
    static JFrame jframe = new JFrame("JFRAME Sample");
    public static void constructFrame() {
        jframe.setSize(500, 400);
        jframe.getContentPane().setLayout(new FlowLayout());
        WindowAdapter wListener = new WindowAdapter() {

            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        };
        jframe.addWindowListener(wListener);
    }
  
  

    public static void main(String[] args) {
       constructFrame();
       JButton jButton = new JButton("Press the Button");
        jframe.getContentPane().add(jButton);
        jframe.setVisible(true);
    }

}

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