Tugas Mobile Aplication

// AGUNAWAN CE-6A 1205112001

package MobileApplication2;


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

public class MobileApplication2 extends MIDlet implements CommandListener{
    private Command exit;
    private Command back;
    private Command save;
    private Command done;
    private Command opening;
    private Command comment;

    private Form fm;
    private List lst;
    private TextBox tb;
    private Display d;

    //contructor
    public MobileApplication2(){
        d = Display.getDisplay(this);
        fm = new Form("TAMPILAN AWAL = AGUNAWAN CE-6A");
        tb = new TextBox("Tulis Komentar", null, 500, 0);
        lst = new List("Pesan pembuka", List.IMPLICIT);
        lst.append("SELAMAT DATANG DI POLITEKNIK NEGERI MEDAN", null);
        
        exit = new Command("Exit", Command.EXIT,1);
        back = new Command("Back", Command.BACK,1);
        save = new Command("save", Command.OK,1);
        done = new Command("done", Command.OK,1);
        comment = new Command("Tulis Komentar", Command.OK, 2);
        opening = new Command("Pesan pembuka", Command.OK, 1);
        
        fm.addCommand(exit);
        fm.addCommand(comment);
        fm.addCommand(opening);
        tb.addCommand(back);
        tb.addCommand(save);
        lst.addCommand(back);
        lst.addCommand(done);
        fm.setCommandListener(this);
        tb.setCommandListener(this);
        lst.setCommandListener(this);
        
    }
    
    public void startApp() {
        d.setCurrent(fm);
    }
    
    public void pauseApp() {
    }
    
    public void destroyApp(boolean unconditional) {
    }

    public void commandAction(Command c, Displayable dd) {
        if(c == exit){
            destroyApp(false);
            notifyDestroyed(); 
        }
        else if(c == opening){
            Alert al = new Alert("Pesan pembuka");
            al.setString("Mohon tunggu sebentar untuk melihat pesan pembuka");
            d.setCurrent(al, lst);
        }
        else if(c == comment){
            Alert al = new Alert("Simpan komentar");
            al.setString("Mohon tunggu untuk menulis komentar");
            al.setType(AlertType.INFO);
            d.setCurrent(al, tb);
        }
        else if(c == back){
            d.setCurrent(fm);
        }
        else if(c == save){
            Alert al = new Alert("Perhatian");
            al.setString("Komentar telah berhasil disimpan");
            al.setType(AlertType.INFO);
            d.setCurrent(al, fm);
        }
        else if(c == done){
            Alert al = new Alert("Loading");
            al.setType(AlertType.INFO);
            d.setCurrent(al, fm);
        }
        
    }
}

Dibawah ini adalah tampilan aplikasi yang sudah dijalankan



1. Tampilan awal. 

2. Tampilan Pesan pembuka.

3. Tampilan Komentar.