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