midlet4.java

这是郭克华老师的J2ME视频的源代码

package prj9_1;
/*
 * 界面上有两个StringItem,要求第一个上面的数字每隔1秒钟变化，第二个上面的数字每隔两秒钟变化
 * */
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Form;
import javax.microedition.lcdui.StringItem;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;

public class MIDlet4 extends MIDlet {
	private Form frm = new Form("这是一个线程测试");
	private StringItem si1 = new StringItem("StringItem1:","");
	private StringItem si2 = new StringItem("StringItem2:","");
	
	private Display dis;
	protected void startApp() throws MIDletStateChangeException {
		dis = Display.getDisplay(this);
		dis.setCurrent(frm);
		frm.append(si1);
		frm.append(si2);
		
		new Thread1().start();
		new Thread(new Thread2()).start();
		
		
	}
	
	protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
		// TODO Auto-generated method stub

	}
	protected void pauseApp() {
		// TODO Auto-generated method stub

	}
	
	class Thread1 extends Thread{
		private int i=1;
		public void run(){
			while(true){
				si1.setText(Integer.toString(i));
				i++;
				try{
					Thread.currentThread().sleep(1000);
				}catch(Exception ex){}
			}
		}
	}
	
	class Thread2 implements Runnable{
		private int i=1;
		public void run(){
			while(true){
				si2.setText(Integer.toString(i));
				i++;
				try{
					Thread.currentThread().sleep(2000);
				}catch(Exception ex){}
			}
		}
	}
	
}