How to addComponentListener JFrame

JFrame addComponentListener Example

This tutorial will teach you how to addComponentListener JFrame which is top level components that are used to create GUI applications.

Other JFrame Methods

• JFrame setJMenuBar Method
• JFrame setSize Method
• JFrame Window Events

 addComponentListener JFrame  Example

[

/** * * @author Eric

 * Blog:coding-whizz.blogspot.com

 */

import javax.swing.JFrame;
import java.awt.Dimension;
import java.awt.Component;
import java.awt.Point;

import java.awt.event.ComponentListener;
import java.awt.event.ComponentEvent;

public class JFrameAddComponentListener  extends       

 JFrame implements ComponentListener{
    JFrameAddComponentListener()
    {
        super(" JFrameAddComponentListener");

        setSize(300, 300);
        addComponentListener(this);
        setVisible(true);
    }


    public void componentHidden(ComponentEvent event)
    {
        Component c=(Component)event.getSource();
        System.out.println("Component Hidden");
    }
    public void componentShown(ComponentEvent event)
    {
        Component c=(Component)event.getSource();
        System.out.println("Component Shown");
    }
    public void componentMoved(ComponentEvent event)
    {
        Component c=(Component)event.getSource();
        Point loc=c.getLocation();
        System.out.println("New JFrame location is  "+loc);

    }
    public void componentResized(ComponentEvent event)
    {
        Component c=(Component)event.getSource();
        Dimension newSize=c.getSize();
        System.out.println("New JFrame size is " +newSize);
    }
    public static void main(String args [])
    {
        new JFrameAddComponentListener();
    }

}

]