textfieldmidlet.java

来自「<j2me 开发精解> 詹建光著 里所有的源码。对J2me的开发相当」· Java 代码 · 共 40 行

package com.j2medev.sample.chapter3;

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

public class TextFieldMidlet extends MIDlet implements CommandListener {
    
    private Form form = new Form("UIDemo");
    private Display display = null;
    private TextField user,pass;
    private Command okCommand = new Command("确定",Command.OK, 1);
    
    public void startApp() {
        if(display==null) {
            display = Display.getDisplay(this);
            user = new TextField("用户名：", "", 20, TextField.ANY);
            pass = new TextField("密 码：", "", 20, TextField.ANY|TextField.PASSWORD);
            form.append(user);
            form.append(pass);
            form.addCommand(okCommand);
            form.setCommandListener(this);
        }
        display.setCurrent(form);
    }
    
    public void pauseApp() {
    }
    
    public void destroyApp(boolean unconditional) {
    }
    
    public void commandAction(Command cmd,Displayable displayable){
        if(cmd == okCommand){
            String u = user.getString();
            String p = pass.getString();
            System.out.println("您输入的用户名和密码分别是"+u+":"+p);
        }
    }
}