imagetest.java.bak

this is my java Test

import java.awt.*;
import java.awt.event.*;
import java.io.*;
import javax.imageio.*;
import javax.swing.*;

public class ImageTest
{
	public static void main(String[] args)
	{
		ImageFrame frame=new ImageFrame();
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	  frame.setVisible(true);
		}
}
class ImageFrame extends JFrame
{
	public ImageFrame()
	{
		setTitle("ImageTest");
		setSize(DEFAULT_WIDTH,DEFAULT_HEIGHT);
		
		ImagePanel panel=new ImagePanel();
		add(panel);
	}
	public static final int DEFAULT_WIDTH=300;
	public static final int DEFAULT_HEIGHT=200;
	
}
class ImagePanel extends JPanel
{
	public ImagePanel()
	{
		try{
			image=ImageIO.read(new File("blue-ball.gif"));
		}
		catch(IOException e)
		{
			e.printStackTrace();
		}
	}
	public void paintComponent(Graphics g)
	{
		super.paintComponent(g);
		if(image==null) return;
		int imageWidth=image.getWidth(this);
		int imageHeight=image.getHeight(this);
		g.drawImage(image,0,0,null);
		for(int i=0;i*imageWidth<=getWidth();i++)
		for(int j=0;j*imageHeight<=getHeight();j++)
		if(i+j>0)
		g.copyArea(0,0,imageWidth,imageheight,i*imageWidth,j*imageheight);
	}
	private Image image;
}