J2ME学习笔记_2
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每一个J2ME程序必须继承? javax.microedition.midlet.MIDlet;
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J2ME程序生命周期是：
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构造
运行
销毁
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关于程序打包：右键-->J2ME-->create package 或者 create obfuscated pageage
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Form类:
Command类:
package com.hoocy;import javax.microedition.lcdui.Command;import javax.microedition.lcdui.Display;import javax.microedition.lcdui.Form;import javax.microedition.midlet.MIDlet;import javax.microedition.midlet.MIDletStateChangeException;public class MIDlet1 extends MIDlet {/*BACK CANCEL EXIT HELP ITEM OK SCREEN STOP */private Form form = new Form("我是FORM的标题");private Command BACK = new Command("BACK", Command.BACK, 1);private Command CANCEL = new Command("CANCEL", Command.CANCEL, 1);private Command EXIT = new Command("EXIT", Command.EXIT, 1);private Command HELP = new Command("HELP", Command.HELP, 1);private Command ITEM = new Command("ITEM", Command.ITEM, 1);private Command OK = new Command("OK", Command.OK, 1);private Command SCREEN = new Command("SCREEN", Command.SCREEN, 1);private Command STOP = new Command("STOP", Command.STOP, 1);private Display display; public MIDlet1() {//获得一个display实例display = Display.getDisplay(this);display.setCurrent(form);form.addCommand(BACK);form.addCommand(CANCEL);form.addCommand(EXIT);form.addCommand(HELP);form.addCommand(ITEM);form.addCommand(OK);form.addCommand(SCREEN);form.addCommand(STOP);System.out.println("构造函数");}protected void destroyApp(boolean arg0) throws MIDletStateChangeException {System.out.println("destroyApp");}protected void pauseApp() {System.out.println("pauseApp");}protected void startApp() throws MIDletStateChangeException {System.out.println("startApp");}}