myframetest.java

用JAVA语言实现的漫天飞舞的雪花的小程序,已经调试通过的源代码.

/**
 * @(#)MyFrameTest.java
 *
 *
 * @author 
 * @version 1.00 2008/11/20
 */
import java.awt.*;
import java.awt.event.*;

public class MyFrameTest extends Frame // implements ActionListener
{

	public MyFrameTest() {
		setSize(1280, 800);
		setBackground(Color.black);


		addWindowListener(new WindowAdapter() {
			public void windowClosing(WindowEvent e) {
				System.exit(0);
			}

		});
	}

	public static void main(String[] args) {
		
		MyFrameTest mft = new MyFrameTest();
		MyPanel mp = new MyPanel();
		
		Thread th=new Thread(mp);
		th.start();
		
		mft.add(mp);

		mft.setVisible(true);
	}
}

class MyPanel extends Panel implements Runnable{
	
	private  int []x=new int[300];
	private  int []y=new int [300];
	
	public MyPanel()
	{
		for (int i = 0; i<300; i++){
	       x[i]=(int)( Math.random()*1280);
           y[i]=(int)(Math.random()*800);	
           	}
	}
	
	public void paint(Graphics g) {
		g.setColor(Color.WHITE);
		
		for (int i = 0; i < 300; i++) {
			g.drawString("*", x[i],y[i]);
			}
		}
		public void run(){
			while (true){
                          try{
    		                   new Thread().sleep(150);
				
			                 }
			              catch(Exception ex){
			              	  
			                 }
			                 for (int i = 0; i<300; i++) {
			                 	x[i]--;
			                 		if(x[i]--<0)
			                 			x[i]=1280;
			                 	y[i]++;
			                 	if(y[i]++>800)
			                 		y[i]=0;
			                 	}
			       repaint();
	                    }
       }
 }