shapes.java

本书结合作者丰富的实践经验和深厚的理论基础

import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import java.awt.image.*;
import javax.swing.*;
public class Shapes extends JFrame {
 public Shapes(){
   super( "Drawing 2D shapes" );
   setSize( 425, 160 );
   setVisible( true );
 }
 public void paint( Graphics g ) {
   super.paint( g );
   Graphics2D g2d = ( Graphics2D ) g;
   g2d.setPaint( Color.blue );
   g2d.fill( new Ellipse2D.Double( 5, 30, 65, 100 ) );
   g2d.setPaint( Color.red );
   g2d.setStroke( new BasicStroke( 6.0f ) );
   g2d.draw( new Arc2D.Double( 80, 30, 75, 100, 0, 250, Arc2D.PIE ) );
   g2d.setPaint( Color.yellow );
   g2d.fill( new RoundRectangle2D.Double(160, 30, 75, 100, 50, 50 ) );
   g2d.setPaint( Color.orange );
   g2d.setStroke( new BasicStroke( 10.0f ) );
   g2d.draw( new Rectangle2D.Double( 245, 30, 65, 100 ) );
   g2d.setPaint( Color.green );
   g2d.draw( new Line2D.Double( 395, 30, 320, 150 ) );
   float dashes[] = { 10 };
   g2d.setPaint( Color.cyan );
   g2d.setStroke( new BasicStroke( 4, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND, 10, dashes, 0 ) );
   g2d.draw( new Line2D.Double( 320, 30, 395, 150 ) );
 }
 public static void main( String args[] ) {
   Shapes application = new Shapes();
   application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE );
 }
}