Tugas Navigasi Pemrogramman Java Mobile












Sintaks programm navigasi :

/*
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package MarthinCH.MIDLet;

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
/**
 * @author MA
 */
public class WakwawProject extends MIDlet implements CommandListener{
    
    Display tampilan;                                               //----> Membuat tampilan
    Form formHome, formSatu, formDua, formTiga;                     //----> Membuat form Selamat Datang, formSatu, formDua dan formTiga
    Command exitCommand = new Command ("Exit", Command.OK, 1);      //----> Membuat perintah Exit
    Command homeCommand = new Command ("Home", Command.OK, 1);      //----> Membuat perintah Home
    Command menuCommand = new Command ("Menu", Command.OK, 1);      //----> Membuat perintah Menu
    Command halaman1    = new Command ("Halaman 1", Command.OK, 1); //----> Membuat perintah objek 'halaman1'
    Command halaman2    = new Command ("Halaman 2", Command.OK, 1); //----> Membuat perintah objek 'halaman2'
    Command halaman3    = new Command ("Halaman 3", Command.OK, 1); //----> Membuat perintah objek 'halaman3'
    
    public WakwawProject(){
         //Form Selamat datang
        formHome = new Form("Ini adalah form Selamat Datang");
        formHome.addCommand(exitCommand);
        formHome.setCommandListener(this);   
        formHome.addCommand(halaman1);
        formHome.addCommand(halaman2);
        formHome.addCommand(halaman3);
        
         //Form pertama
        formSatu = new Form("Ini adalah form pertama");
        formSatu.addCommand(homeCommand);
        formSatu.setCommandListener(this);
        formSatu.addCommand(halaman2);
        formSatu.addCommand(halaman3);
        formSatu.addCommand(exitCommand);
        formSatu.setCommandListener(this);
        
        //Form kedua
        formDua = new Form("Ini adalah form kedua");
        formDua.addCommand(homeCommand);
        formDua.setCommandListener(this);
        formDua.addCommand(halaman1);
        formDua.addCommand(halaman3);
        formDua.addCommand(exitCommand);
        formDua.setCommandListener(this);
        
        //Form ketiga
        formTiga = new Form("Ini adalah form ketiga");
        formTiga.addCommand(homeCommand);
        formTiga.setCommandListener(this);
        formTiga.addCommand(halaman1);
        formTiga.addCommand(halaman2);
        formTiga.addCommand(exitCommand);
        formTiga.setCommandListener(this);
    }
    
    public void startApp() {
        if (tampilan == null) {
            tampilan = Display.getDisplay(this);
            tampilan.setCurrent(formHome);
        }
    }
    
    public void pauseApp() {
    }
    
    public void destroyApp(boolean unconditional) {
    }

    public void commandAction(Command c, Displayable d) {
        if (c == exitCommand) {
            destroyApp(true);
            notifyDestroyed(); // Exit
        }
        //Perintah menuju ke halaman1
        else if(c == halaman1)
        {
            tampilan.setCurrent(formSatu);
        }
        //Perintah menuju ke halaman2
        else if(c == halaman2)
        {
            tampilan.setCurrent(formDua);
        }
        //Perintah menuju ke halaman3
        else if(c == halaman3)
        {
            tampilan.setCurrent(formTiga);
        }
        //Sintaks untuk membuat perintah kembali ke Home
        if(c == homeCommand)
        {
            tampilan.setCurrent(formHome);
        }
    }
}

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