Membuat Program Sederhana J2ME dengan Java

Membuat Program Sederhana J2ME dengan Java

1. Buka aplikasi netbeans IDE
2. Buat project baru dari File - New Project
3. Lalu pilih JavaME pilih project Mobile application - Klik Next
4. Project Name tulis Nama : DataPribadi
5. Tekan Finish

Pada class Data Pribadi hapus semua isinya lalu kopikan source berikut :

/*

* To change this template, choose Tools | Templates

* and open the template in the editor.

*/

package DataPribadi;

import javax.microedition.midlet.MIDlet;

import javax.microedition.lcdui.*;

/**

* @author Fransiscus Yasman Gea, Email nias_man@yahoo.com , twitter @excelgea

*/

public class Midlet extends MIDlet implements CommandListener {

//inisialisasi properti

private Display display;

private Form fmDataPribadi;

private Form fmHasil;

private Command cmOk;

private Command cmExit;

private Command cmBack;

private TextField tfNama;

private TextField tfNIM;

private TextField tfAlamat;

private ChoiceGroup cgProdi;

private int choiceGroupIndex;

private StringItem siNama, siNIM, siAlamat, siProdi;

private boolean midletPaused = false;

//
//

/**

* The tugas constructor.

*/

public Midlet() {

}

//
//

//
/**
* Initilizes the application.
* It is called only once when the MIDlet is started. The method is called before the startMIDlet method.
*/
private void initialize() {
// write pre-initialize user code here

// write post-initialize user code here
}
//

//
/**
* Performs an action assigned to the Mobile Device - MIDlet Started point.
*/
public void startMIDlet() {
// write pre-action user code here

// write post-action user code here
}
//

//
/**
* Performs an action assigned to the Mobile Device - MIDlet Resumed point.
*/
public void resumeMIDlet() {
// write pre-action user code here

// write post-action user code here
}
//

//
/**
* Switches a current displayable in a display. The display instance is taken from getDisplay method. This method is used by all actions in the design for switching displayable.
* @param alert the Alert which is temporarily set to the display; ifnull, then nextDisplayable is set immediately
* @param nextDisplayable the Displayable to be set
*/
public void switchDisplayable(Alert alert, Displayable nextDisplayable) {
// write pre-switch user code here
Display display = getDisplay();
if (alert == null) {
display.setCurrent(nextDisplayable);
} else {
display.setCurrent(alert, nextDisplayable);
}
// write post-switch user code here
}
//

/**

* Returns a display instance.

* @return the display instance.

*/

public Display getDisplay () {

return Display.getDisplay(this);

}

//memanggil manager aplikasi untuk memulai MIDlet

public void startApp(){

display = Display.getDisplay(this);

//membuat tombol

cmExit = new Command("Exit", Command.EXIT, 0);

cmOk = new Command("Ok", Command.SCREEN, 0);

cmBack = new Command("Back", Command.BACK, 0);

//textfield untuk data pribadi

tfNama = new TextField("Nama: ", "", 30, TextField.ANY);

tfNIM = new TextField("NIM :", "", 30, TextField.ANY);

tfAlamat = new TextField ("Alamat :", "", 30, TextField.ANY);

//pemilihan Prodi

cgProdi = new ChoiceGroup("Prodi", Choice.EXCLUSIVE);

//meng-append pilihan atau choice

cgProdi.append("Teknik Komputer", null);

cgProdi.append("Manajement Informatika", null);

//membuat form dan memasukkan komponen

fmDataPribadi = new Form("Data Pribadi");

fmDataPribadi.addCommand(cmExit);

fmDataPribadi.addCommand(cmOk);

fmDataPribadi.append(tfNama);

fmDataPribadi.append(tfNIM);

fmDataPribadi.append(tfAlamat);

choiceGroupIndex = fmDataPribadi.append(cgProdi);

fmDataPribadi.setCommandListener(this);

//membuat form hasil input user

fmHasil = new Form("Profile Anda");

//membuat string item untuk menampilkan text dan pilihan yang diisi

siNama = new StringItem("Nama: ", null);

siNIM = new StringItem ("NIM : ", null);

siAlamat = new StringItem ("Alamat : ", null);

siProdi = new StringItem("Prodi: ", null);

//menampilkan StringItem yang nanti akan diisi oleh data hasil input user

fmHasil.append(siNama);

fmHasil.append(siNIM);

fmHasil.append(siAlamat);

fmHasil.append(siProdi);

//menambahkan command

fmHasil.addCommand(cmBack);

fmHasil.setCommandListener(this);

//menampilkan form DataPribadi sebagai tampilan awal

display.setCurrent(fmDataPribadi);

}

public void pauseApp(){

}

public void destroyApp(boolean unconditional){

}

public void commandAction(Command c, Displayable d){

//variable string untuk menampung inputan user

String nama,nim,alamat,tmptlhr,tgllhr,prodi = null;

//jika tombol/command OK ditekan

if(c == cmOk){

//mendapatkan inputan user

nama = tfNama.getString();

nim = tfNIM.getString();

alamat = tfAlamat.getString();

prodi = cgProdi.getString(cgProdi.getSelectedIndex());

//memasukkan hasil input ke StringItem

siNama.setText(nama);

siNIM.setText(nim);

siAlamat.setText(alamat);

siProdi.setText(prodi);

//menampilkan form hasil setelah cmOk ditekan

display.setCurrent(fmHasil);

} else if(c == cmExit){ //jika tombol/command Exit ditekan

destroyApp(true);

notifyDestroyed();

} else if(c == cmBack){ //jika tombol/command Back ditekan

//menampilkan kembali form DataPribadi sebagai tampilan default/awal

display.setCurrent(fmDataPribadi);

}

}

}

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