继承Canvas类在paint方法中实现自己的绘图功能。Java代码如下：
继承Canvas类在paint方法中实现自己的绘图功能。Java代码如下：
import java.awt.*;
class MyCanvas extends Canvas{
public void paint(Graphics g){
g.setFont(new Font("华文行楷",Font.PLAIN,20));
g.setColor(Color.RED);
g.drawString("绘图测试!",20,20);
g.drawLine(30,60,100,60);
g.setColor(Color.BLUE);
g.draw3DRect(60,50,70,30,false);
g.setColor(Color.BLUE);
g.fillArc(0,60,65,65,40,80);
g.setFont(new Font("华文彩云",Font.PLAIN,30));
g.setColor(Color.PINK);
g.drawString("彩云之南",20,120);
}
}
public class AWTDrawing {
public static void main( String args[]) {
Frame f = new Frame("AWT绘图");
MyCanvas p = new MyCanvas();
f.add(p);
f.setSize(170,170);
f.setBackground( new Color(160,220,220));
f.setVisible( true);
}
}效果图：
