Kode Java

 
package org.kodejava.example.swing;
 
import java.awt.Button;
import java.awt.Dimension;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
 
import javax.swing.JFrame;
 
public class WindowClosingExample extends JFrame {
    public static void main(String[] args) {
	WindowClosingExample frame = new WindowClosingExample();
	frame.setSize(new Dimension(200, 200));
	frame.add(new Button("Hello World"));
 
	//
	// Add window listener by implementing WindowAdapter class to the 
	// frame instance. To handle the close event we just need to implement
	// the windowClosing() method.
	//
	frame.addWindowListener(new WindowAdapter() {
 
	    @Override
	    public void windowClosing(WindowEvent e) {
		System.exit(0);
	    }
	});
 
        //
        // Show the frame
        // 
	frame.setVisible(true);
    }
}
 
 

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