按确定进入第二屏后，返回再确定进不去第二屏！以下是原代码！importjava.util.Date;importjava.util.TimeZone;importjavax.microedition.lcdui.Choice;importjavax.microedition.lcd...

按确定进入第二屏后，返回再确定进不去第二屏！

以下是原代码！

import java.util.Date;

import java.util.TimeZone;

import javax.microedition.lcdui.Choice;

import javax.microedition.lcdui.ChoiceGroup;

import javax.microedition.lcdui.Command;

import javax.microedition.lcdui.CommandListener;

import javax.microedition.lcdui.DateField;

import javax.microedition.lcdui.Display;

import javax.microedition.lcdui.Displayable;

import javax.microedition.lcdui.Form;

import javax.microedition.lcdui.Gauge;

import javax.microedition.lcdui.Image;

import javax.microedition.lcdui.StringItem;

import javax.microedition.lcdui.TextField;

import javax.microedition.midlet.MIDlet;

import javax.microedition.midlet.MIDletStateChangeException;

public class Test extends MIDlet implements CommandListener {

Display dis = Display.getDisplay(this);

Form f = new Form("请您输入信息:");

Form f1=new Form("您输入的信息:");

Command cq = new Command("确定", Command.OK, 1);

Command cf = new Command("返回",Command.BACK,2);

Command cl = new Command("离开",Command.EXIT,3);

TextField Tf = new TextField("姓名：", "", 200, TextField.ANY);

ChoiceGroup cg = new ChoiceGroup("性别", Choice.POPUP);

ChoiceGroup cg2 = new ChoiceGroup("爱好", Choice.MULTIPLE);

Date at = new Date();

DateField df = new DateField("", DateField.DATE_TIME, TimeZone

.getTimeZone("GMT+08"));

public Test() {

f.append(Tf);

cg.append("男", null);

cg.append("女", null);

f.append(cg);

cg2.append("游戏", null);

cg2.append("音乐", null);

cg2.append("旅游", null);

cg2.append("看书", null);

f.append(cg2);

f.addCommand(cq);

f.addCommand(cl);

f.setCommandListener(this);

}

protected void destroyApp(boolean arg0) throws MIDletStateChangeException {

this.notifyDestroyed();

}

protected void pauseApp() {

}

protected void startApp() throws MIDletStateChangeException {

dis.setCurrent(f);

}

public void commandAction(Command c, Displayable d) {

if(c==cl){

try {

this.destroyApp(true);

} catch (MIDletStateChangeException e) {

e.printStackTrace();

}

}else if(c==cq&&d==f){

String s = "您的姓名: "+Tf.getString();

f1.append(s);

f1.append("\n");

int a = cg.getSelectedIndex();

String s1 = "您的性别: "+cg.getString(a);

f1.append(s1);

f1.append("\n");

f1.append("您的爱好：");

for(int i = 0;i

if(cg2.isSelected(i)==true){

f1.append(cg2.getString(i));

}

}

f1.append("\n");

f1.append("您输入的时间是: ");

df.setDate(at);

f1.append(df);

f1.addCommand(cf);

f1.addCommand(cl);

f1.setCommandListener(this);

dis.setCurrent(f1);

}else if(c==cf&&d==f1){

dis.setCurrent(f);

}

}

}

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