83 lines
2.0 KiB
Java
83 lines
2.0 KiB
Java
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Threaded visual counters
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package com.ack.gui.awt.examples.threadrace;
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import java.awt.*;
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import java.awt.event.WindowAdapter;
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import java.awt.event.WindowEvent;
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public class ThreadedVisualCounters extends Frame {
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// private ThreadedVisualCounters tvc;
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private Dimension size = new Dimension( 400, 400 );
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public ThreadedVisualCounters( String title ) {
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super( title );
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setLayout( new GridLayout( 3, 3, 2, 2 ) );
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setBackground( Color.black );
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Counter[] counterArray = new Counter[10];
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for( int i = 1; i < counterArray.length; i++ ) {
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counterArray[i] = new Counter( "Counter " + i, i );
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add( counterArray[i] );
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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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pack();
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setVisible( true );
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}
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}
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public Dimension getPreferredSize() {
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return ( new Dimension( size.width, size.height ) );
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}
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public static void main( String[] args ) {
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ThreadedVisualCounters threadedVisualCounters1 =
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new ThreadedVisualCounters( "Threaded Visual Counters" );
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}
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}
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class Counter extends Panel implements Runnable {
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int c = 1;
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int priority;
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Thread t1 = null;
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String cname;
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public Counter( String cname, int priority ) {
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this.priority = priority;
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this.cname = cname;
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t1 = new Thread( this );
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t1.setPriority( priority );
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t1.setName( cname );
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t1.start();
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}
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public void run() {
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while( true ) {
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if( c > 254 )
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c = 1;
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c++;
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try {
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t1.sleep( this.priority * 150 );
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}
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catch( InterruptedException ie ) {
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System.out.println( ie.getMessage() );
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}
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repaint();
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}
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}
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public void paint( Graphics g ) {
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g.setColor( new Color( 255, 255 - c, 0 ) );
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g.fillRect( 5, 5, c / 2, 30 );
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g.setColor( Color.white );
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g.drawString( cname + " : " + c, 25, 25 );
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}
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}
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