logo.java

这是本人在上学的时候写的一个小鸡过马路的程序.里面据体实现了音乐播放,碰撞检测等功能J2ME程序

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import java.io.*;
public class Logo extends Canvas implements Runnable
{
	Image logoimg1,logoimg2,logoimg3;
	boolean sleeping;
	int count;
	Thread trd;
	MIDletFrame lt;
	public Logo(MIDletFrame lt)
	{
		setFullScreenMode(true);
		sleeping=true;
		this.lt=lt;
		try
		{
			logoimg1=Image.createImage("/monternet.png");
			logoimg2=Image.createImage("/bbox.png");
			logoimg3=Image.createImage("/nT.png");
		}
		catch(IOException e)
		{
			e.printStackTrace();
		}
		trd=new Thread(this);
		trd.start();
	}
	public void paint(Graphics g)
	{
		if(count<4)
		{
			g.setColor(255,255,255);
			g.fillRect(0,0,getWidth(),getHeight());
			g.drawImage(logoimg1,(getWidth()-logoimg1.getWidth())/2,(getHeight()-logoimg1.getHeight())/2,0);
		}
		else if(count==8)
		{
			g.setColor(255,255,255);
			g.fillRect(0,0,getWidth(),getHeight());
			g.drawImage(logoimg2,(getWidth()-logoimg2.getWidth())/2,(getHeight()-logoimg2.getHeight())/2,0);
		}
		else if(count==16)
		{
			g.setColor(0,0,0);
			g.fillRect(0,0,getWidth(),getHeight());
			g.drawImage(logoimg3,(getWidth()-logoimg3.getWidth())/2,(getHeight()-logoimg3.getHeight())/2,0);
		}
		else if(count==20)
		{
			lt.display.setCurrent(lt.hc);
			sleeping=false;

		}
	}
	public void run()
	{
		while(sleeping)
		{
			count++;
			repaint();
			try
			{
				Thread.sleep(200);
			}
			catch(Exception e)
			{
			}
		}
	}
}