countermidlet.java

用J2ME开发的一个实用软件——计算器。实现了windows系统自带计算器的基本计算功能

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
//启动程序
public class CounterMidlet extends MIDlet {
	static Display dis;
	static CounterMidlet quit;
	public CounterMidlet() {
		quit = this;
		dis = Display.getDisplay(this);
		dis.setCurrent(new CounterCanvas());
	}
	public static void quitApp() {
		quit.destroyApp(true);
		quit.notifyDestroyed();
		quit = null;
	}
	protected void destroyApp(boolean b) {
	}
	protected void pauseApp() {
	}
	protected void startApp() {
	}
}