Javase window event Class (WindowEvent) implementation

{Related Information}
Window events (windowevent) are events that change the state of a window, such as when the Window object is opened, closed, activated, deactivated, or the focus shifts to the window.
And the events generated by the focus removal typically occur on objects such as Window, Frame, Dialog, and so on. Using window events You must add an event handler for the component that implements the WindowListener interface, which contains the following 7 methods:
void windowactivated (WindowEvent e): Occurs when a window is activated
void windowclosed (WindowEvent e): Occurs after a window is closed
void Windowclosing (WindowEvent e): Occurs during window closing
void windowdeactivated (WindowEvent e): Occurs when the window is no longer in the active state
void Windowdeiconified (WindowEvent e): Occurs when the window size is from smallest to normal
void Windowiconified (WindowEvent e): Occurs from normal to minimum window
void windowopened (WindowEvent e): Occurs when the window is opened for the first time

{Related Code}

 PackageSup.orange.learn;Importjava.awt.*;Importjava.awt.event.WindowEvent;ImportJava.awt.event.WindowListener;/*** Created by Re-x on 11/2/14.*/ Public classWindoweventdemoextendsFrame {string string=NULL;  PublicWindoweventdemo () {Super();    Init (); }     Public Static voidMain (string[] args) {NewWindoweventdemo (); }     Public voidinit () {Addwindowlistener (NewWindowListener () {@Override Public voidwindowopened (WindowEvent e) {string= "Window Opened";                System.out.println (string);            Repaint (); } @Override Public voidwindowclosing (WindowEvent e) {string= "Window Closing";                System.out.println (string); SetVisible (false);                Dispose (); System.exit (0); } @Override Public voidwindowclosed (WindowEvent e) {string= "Window Closed";                System.out.println (string);            Repaint (); } @Override Public voidwindowiconified (WindowEvent e) {string= "Window Iconified";                System.out.println (string);            Repaint (); } @Override Public voidwindowdeiconified (WindowEvent e) {string= "Window Deiconified";                System.out.println (string);            Repaint (); } @Override Public voidwindowactivated (WindowEvent e) {string= "Window Activated";                System.out.println (string);            Repaint (); } @Override Public voidwindowdeactivated (WindowEvent e) {string= "Window deactivated";                System.out.println (string);            Repaint ();        }        }); SetSize (200, 200); SetVisible (true); }     Public voidPaint (Graphics g) {g.drawstring (string,30, 100); }}

Javase window event Class (WindowEvent) implementation