j2me bug检查

来源：百度知道 编辑：UC知道 时间：2024/07/07 23:59:23
package hello;

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

/**
* @author guyz
*/
public class onlinehelpMidlet extends MIDlet implements CommandListener {
private Display display;
private Command exit;
private Command back;
private Command help;
private Form form;
private TextBox showhelp;
public void onlinehelpMidlet(){
display = Display.getDisplay(this);
form = new Form("Online help");
back = new Command("Back",Command.BACK,1);
exit = new Command("Exit",Command.EXIT,2);
help = new Command("Help",Command.HELP,3);
showhelp= new TextBox("Help Message","Help information detial as here",81,0);
showhelp.addCommand(back);
form.addCommand(exit);
form.addCommand(help);
form.

你缺少onlinehelpMidlet的instance:
举例:
public void startApp() {
onlinehelpMidlet om = new onlinehelpMidlet();
om.init();
}

public void init(){
display.setCurrent(form);
}

手头没j2me环境了,记不太清了,快一年没做j2me了,你可以试试看.