testdrawing1.java

来自「这是一张java应用教程的随书光盘」· Java 代码 · 共 24 行

import javax.swing.*; import java.awt.*;
class Mycanvas extends JPanel 
{ public void paintComponent(Graphics g)
  { super.paintComponent(g);
    g.setColor(Color.red);
    Font font1=new Font("斜体",Font.ITALIC,15);
    g.setFont(font1); 
    g.drawString("this is a Java book",100,50);
    g.drawArc(240,0,100,200,70,80);
	g.fillArc(10,0,100,200,70,80);
	g.drawLine(30,60,140,120);
	g.draw3DRect(60,50,70,30,false);


  }
}
public class Testdrawing1 extends JApplet
{ Mycanvas canvas; JPanel panel;JButton button;
  public void init()
  { canvas=new Mycanvas();panel=new JPanel();button=new JButton("ok");
    panel.add(button); Container con=getContentPane();
    con.add(panel,BorderLayout.NORTH); con.add(canvas,BorderLayout.CENTER); 
  }
}