canvas.java

java练习程序

import java.applet.*;
import java.awt.*;

class MyCanvas extends Canvas
{
	MyCanvas()
	{
		getSize();
	}
	public void paint(Graphics g)
	{
		g.setColor(Color.red);
		g.drawString("我在画布上写字呢",6,30);
		g.drawString("我将来还能画很多图形",6,50);
	}
	public Dimension getPreferredSize()
	{
		return new Dimension(160,100);
	}
}

public class Canvas extends Applet
{
	MyCanvas mycanvas;
	public void init()
	{
		mycanvas=new MyCanvas();
		add(mycanvas);
	}
}