57 lines
1.6 KiB
Java
57 lines
1.6 KiB
Java
|
Justify a frame to the center of the screen
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
package com.ack.gui.awt.simple;
|
||
|
|
|
||
|
|
import java.awt.*;
|
||
|
|
import java.awt.event.ActionEvent;
|
||
|
|
import java.awt.event.ActionListener;
|
||
|
|
import java.awt.event.WindowAdapter;
|
||
|
|
import java.awt.event.WindowEvent;
|
||
|
|
|
||
|
|
public class JustifyAFrameToTheCenterOfTheScreen implements ActionListener {
|
||
|
|
private Frame f;
|
||
|
|
private Button b1, b2;
|
||
|
|
|
||
|
|
public static void main( String[] args ) {
|
||
|
|
JustifyAFrameToTheCenterOfTheScreen justifyAFrameToTheCenterOfTheScreenExample =
|
||
|
|
new JustifyAFrameToTheCenterOfTheScreen();
|
||
|
|
justifyAFrameToTheCenterOfTheScreenExample.go();
|
||
|
|
}
|
||
|
|
|
||
|
|
public void go() {
|
||
|
|
f = new Frame( "Centered Gui Example" );
|
||
|
|
f.setLayout( new FlowLayout() );
|
||
|
|
|
||
|
|
b1 = new Button( "Button 1" );
|
||
|
|
b1.addActionListener( this );
|
||
|
|
f.add( b1 );
|
||
|
|
|
||
|
|
b2 = new Button( "Button 2" );
|
||
|
|
b2.addActionListener( this );
|
||
|
|
f.add( b2 );
|
||
|
|
|
||
|
|
f.addWindowListener( new WindowAdapter() {
|
||
|
|
public void windowClosing( WindowEvent we ) {
|
||
|
|
System.exit( 0 );
|
||
|
|
}
|
||
|
|
} );
|
||
|
|
f.pack();
|
||
|
|
Toolkit toolkit = Toolkit.getDefaultToolkit();
|
||
|
|
Dimension ssize = toolkit.getScreenSize();
|
||
|
|
Dimension framesize = f.getSize();
|
||
|
|
int x = (int) ( ssize.getWidth() - f.getWidth() ) / 2;
|
||
|
|
int y = (int) ( ssize.getHeight() - f.getHeight() ) / 2;
|
||
|
|
f.setLocation( x, y );
|
||
|
|
f.setVisible( true );
|
||
|
|
}
|
||
|
|
|
||
|
|
public void actionPerformed( ActionEvent ae ) {
|
||
|
|
if( (Button) ae.getSource() == b1 )
|
||
|
|
System.out.println( "First Button was pressed!" );
|
||
|
|
if( (Button) ae.getSource() == b2 )
|
||
|
|
System.out.println( "Second Button was pressed!" );
|
||
|
|
}
|
||
|
|
}
|