linesrectsovalsarcs.java

这是java 2应用开发指南这本书上所有例子的源代码

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
 public class LinesRectsOvalsArcs extends JFrame {
   public LinesRectsOvalsArcs(){
     super( "Drawing lines, rectangles,ovals and arcs" );
     setSize( 400, 315 );
     setVisible( true );
   }
   public void paint( Graphics g ){
     super.paint( g );
     g.setColor( Color.red );
     g.drawLine( 5, 30, 350, 30 );
     g.setColor( Color.blue );
     g.drawRect( 5, 40, 90, 55 );
     g.fillRect( 100, 40, 90, 55 ); 
     g.setColor( Color.cyan );
     g.fillRoundRect( 195, 40, 90, 55, 50, 50 );
     g.drawRoundRect( 290, 40, 90, 55, 20, 20 );
     g.setColor( Color.yellow );
     g.draw3DRect( 5, 100, 90, 55, true );
     g.fill3DRect( 100, 100, 90, 55, false );
     g.setColor( Color.magenta );
     g.drawOval( 195, 100, 90, 55 );
     g.fillOval( 290, 100, 90, 55 );
     g.setColor( Color.yellow );
     g.setColor( Color.black );
     g.drawArc( 15, 185, 80, 80, 0, 360 );
     g.setColor( Color.yellow );
     g.setColor( Color.black );
     g.drawArc( 100, 185, 80, 80, 0, 110 );
     g.setColor( Color.yellow );
     g.setColor( Color.black );
     g.drawArc( 185, 185, 80, 80, 0, -270 );
     g.fillArc( 15, 270, 80, 40, 0, 360 );
     g.fillArc( 100, 270, 80, 40, 270, -90 );
     g.fillArc( 185, 270, 80, 40, 0, -270 );
  }
  public static void main( String args[] )
{
    LinesRectsOvalsArcs app = new LinesRectsOvalsArcs();
    app.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE );
  }		
}