MODUL PRAKTIKUM PEMROGRAMAN BERORIENTASI OBJEK (JAVA) PERTEMUAN 12 WIRELESS JAVA PROGRAMMING WITH JAVA 2 MICRO EDITION (J2ME)

MODUL PRAKTIKUM PEMROGRAMAN BERORIENTASI OBJEK (JAVA)

PERTEMUAN 12 WIRELESS JAVA PROGRAMMING WITH JAVA 2 MICRO EDITION (J2ME) Nurochman, Teknik Informatika UIN Sunan Kalijaga Yogyakarta 2010


A.

Percobaan menampilkan Form

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

public class Midlet01 extends MIDlet { private Display display; private Form form;

public Midlet01() { form = new Form("MIDLET 01"); }

protected void startApp() { display = Display.getDisplay(this); display.setCurrent(form); }

protected void pauseApp() {}

protected void destroyApp(boolean unconditional) { notifyDestroyed(); } } B.

Percobaan menampilkan Form dengan item


public class Midlet01 extends MIDlet { private Display display; private Form form;

public Midlet01() {

Nurochman, Teknik Informatika UIN Sunan Kalijaga Yogyakarta 2010

MODUL PRAKTIKUM PEMROGRAMAN BERORIENTASI OBJEK (JAVA) form = new Form("MIDLET 01"); form.append("Aplikasi Midlet Pertama\n"); form.append("Universitas Gadjah Mada"); }



protected void destroyApp(boolean unconditional) { notifyDestroyed(); } } C.

Percobaan menampilkan TextField


public class Midlet02 extends MIDlet { private Display display; private Form form; private TextField tf_nama, tf_tlp;

public Midlet02() { form = new Form("MIDLET 02"); tf_nama = new TextField("Username", "", 10, TextField.ANY); tf_tlp = new TextField("Password", "", 10, TextField.PASSWORD); form.append(tf_nama); form.append(tf_tlp); }

protected void startApp() { display = Display.getDisplay(this); Nurochman, Teknik Informatika UIN Sunan Kalijaga Yogyakarta 2010

MODUL PRAKTIKUM PEMROGRAMAN BERORIENTASI OBJEK (JAVA) display.setCurrent(form); }


protected void destroyApp(boolean unconditional) { notifyDestroyed(); } } D.

Percobaan menampilkan DateField


public class Midlet03 extends MIDlet { private Display display; private Form form; private DateField df_tgl, df_jam;

public Midlet03() { form = new Form("MIDLET 03"); df_tgl = new DateField("Tanggal", DateField.DATE); df_jam = new DateField("Jam", DateField.TIME); form.append(df_tgl); form.append(df_jam); }



protected void destroyApp(boolean unconditional) { notifyDestroyed(); } }



E.

Percobaan menampilkan Command


public class Midlet03 extends MIDlet { private Display display; private Form form; private DateField df_tgl, df_jam; private Command cmd_klr;

public Midlet03() { form = new Form("MIDLET 03"); df_tgl = new DateField("Tanggal", DateField.DATE); df_jam = new DateField("Jam", DateField.TIME); cmd_klr = new Command("Keluar", Command.EXIT, 0); form.append(df_tgl); form.append(df_jam); form.addCommand(cmd_klr); }



protected void destroyApp(boolean unconditional) { notifyDestroyed(); } } F.

Percobaan menampilkan Command dengan Event Handler


public class Midlet04 extends MIDlet implements CommandListener { Nurochman, Teknik Informatika UIN Sunan Kalijaga Yogyakarta 2010

MODUL PRAKTIKUM PEMROGRAMAN BERORIENTASI OBJEK (JAVA) private Display display; private Form form; private DateField df_tgl, df_jam; private Command cmd_klr;

public Midlet04() { form = new Form("MIDLET 04"); df_tgl = new DateField("Tanggal", DateField.DATE); df_jam = new DateField("Jam", DateField.TIME); cmd_klr = new Command("Keluar", Command.EXIT, 0); form.append(df_tgl); form.append(df_jam); form.addCommand(cmd_klr); form.setCommandListener(this); }



protected void destroyApp(boolean unconditional) { notifyDestroyed(); }

public void commandAction(Command c, Displayable d) { if (c == cmd_klr) { destroyApp(true); } } } G.

Percobaan menampilkan Menu



MODUL PRAKTIKUM PEMROGRAMAN BERORIENTASI OBJEK (JAVA) public class Midlet05 extends MIDlet { private Display display; private List menu; private String[] menu_str = {"New Game", "Loading", "High Score", "Instructions", "About", "Exit"};

public Midlet05() { menu = new List("Game Menu", List.IMPLICIT, menu_str, null); }

protected void startApp() { display = Display.getDisplay(this); display.setCurrent(menu); }


protected void destroyApp(boolean unconditional) { notifyDestroyed(); } } H.

Percobaan menampilkan Menu dengan Event Handler


public class Midlet05 extends MIDlet implements CommandListener { private Display display; private Alert alert = new Alert("Info"); private List menu; private String[] menu_str = {"New Game", "Loading", "High Score", "Instructions", "About", "Exit"};

public Midlet05() { menu = new List("Game Menu", List.IMPLICIT, menu_str, null); menu.setCommandListener(this); }

protected void startApp() { Nurochman, Teknik Informatika UIN Sunan Kalijaga Yogyakarta 2010

MODUL PRAKTIKUM PEMROGRAMAN BERORIENTASI OBJEK (JAVA) display = Display.getDisplay(this); display.setCurrent(menu); }



public void commandAction(Command c, Displayable d) { switch (menu.getSelectedIndex()) { case 0: alert.setString(menu_str[0]); break; case 1: alert.setString(menu_str[1]); break; case 2: alert.setString(menu_str[2]); break; case 3: alert.setString(menu_str[3]); break; case 4: alert.setString(menu_str[4]); break; case 5: destroyApp(true); break;

} display.setCurrent(alert); } } I.

Percobaan menampilkan Ticker


public class Midlet05 extends MIDlet implements CommandListener { private Display display; private Ticker ticker = new Ticker("Game Midlet"); private Alert alert = new Alert("Info");


MODUL PRAKTIKUM PEMROGRAMAN BERORIENTASI OBJEK (JAVA) private List menu; private String[] menu_str = {"New Game", "Loading", "High Score", "Instructions", "About", "Exit"};

public Midlet05() { menu = new List("Game Menu", List.IMPLICIT, menu_str, null); menu.setTicker(ticker); menu.setCommandListener(this); }

protected void startApp() { display = Display.getDisplay(this); display.setCurrent(menu); }



public void commandAction(Command c, Displayable d) { switch (menu.getSelectedIndex()) { case 0: alert.setString(menu_str[0]);

case 5: destroyApp(true); break; } display.setCurrent(alert); } } J.

Percobaan menampilkan TextBox


public class Midlet06 extends MIDlet { private Display display;


MODUL PRAKTIKUM PEMROGRAMAN BERORIENTASI OBJEK (JAVA) private TextBox tbox;

public Midlet06() { tbox = new TextBox("pesan", "", 160, TextField.ANY); }

protected void startApp() { display = Display.getDisplay(this); display.setCurrent(tbox); }


protected void destroyApp(boolean unconditional) { notifyDestroyed(); } } K.

Percobaan menggambar menggunakan Canvas

import javax.microedition.lcdui.*;

class Media extends Canvas implements CommandListener { private Midlet07 m; private Command cmd_klr; private int lbr_canvas, tg_canvas;

public Media(Midlet07 m) { this.m = m; lbr_canvas = getWidth(); tg_canvas = getHeight(); cmd_klr = new Command("Keluar", Command.EXIT, 0); addCommand(cmd_klr); setCommandListener(this); }

public void paint(Graphics g) { g.setColor(255, 255, 255); g.fillRect(0, 0, lbr_canvas, tg_canvas);



g.setColor(0, 0, 0); g.fillArc(0, 5, 20, 20, 0, 360); g.fillArc(25, 5, 20, 20, 0, 180); g.fillArc(50, 5, 20, 20, 180, 180); g.fillArc(75, 5, 20, 20, 90, 180); g.fillArc(80, 5, 20, 20, 270, 180); g.fillArc(105, 5, 20, 20, 35, 290); g.fillArc(130, 5, 20, 20, 215, 290); g.fillArc(155, 5, 20, 20, 305, 290); }

public void commandAction(Command c, Displayable d) { if (c == cmd_klr) { m.destroyApp(true); } } } import javax.microedition.midlet.*; import javax.microedition.lcdui.*;

public class Midlet07 extends MIDlet { private Display display; private Canvas media;

public Midlet07() { media = new Media(this); }

protected void startApp() { display = Display.getDisplay(this); display.setCurrent(media); }


public void destroyApp(boolean unconditional) {


MODUL PRAKTIKUM PEMROGRAMAN BERORIENTASI OBJEK (JAVA) notifyDestroyed(); } }

L.

Percobaan animasi bola

import javax.microedition.lcdui.*; import java.util.Random;

class Media extends Canvas implements Runnable, CommandListener { private final int BALL_SIZE = 20; private final int[] PINK = {204,0,204}; private final int[] UNGU = {153,0,204}; private final int[] KREM = {255,153,0}; private final int[] HIJAU = {51,204,51}; private final int[] MERAH = {204,51,0}; private final int[][] COLOR = {PINK, UNGU, KREM, HIJAU, MERAH}; private final int DELAY = 0;

private BolaPantul bp; private int x, y, lebar_canvas, tinggi_canvas; private boolean running = false; private boolean naik = false; private Thread t; private boolean ditekan = false;

private Command cmdExit = new Command("Keluar", Command.EXIT, 0);

public Media(BolaPantul bp) { this.bp = bp; inisialisasi(); addCommand(cmdExit); setCommandListener(this); }

private void inisialisasi() { lebar_canvas = getWidth(); tinggi_canvas = getHeight(); x = (lebar_canvas-BALL_SIZE)/2;


MODUL PRAKTIKUM PEMROGRAMAN BERORIENTASI OBJEK (JAVA) y = 0; }

protected void paint(Graphics g) { g.setColor(255,204,255); g.fillRect(0, 0, lebar_canvas, tinggi_canvas);

paintBall(g, x, y, BALL_SIZE, 0, 360, COLOR[1]); }

private void paintBall(Graphics graphics, int posx, int posy, int size, int start_angel, int end_angel, int[] color) {

graphics.setColor(color[0],color[1],color[2]); graphics.fillArc(posx, posy, size, size, start_angel, end_angel); }

protected void showNotify() { running = true; t = new Thread(this); t.start(); }

public void run() { while (running) { if (y == 0) { y++; naik = false; } else if (y < tinggi_canvas - BALL_SIZE && !naik) { y++; } else if (y < tinggi_canvas - BALL_SIZE && naik) { y--; } else if (y == tinggi_canvas - BALL_SIZE) { y--; naik = true; }


MODUL PRAKTIKUM PEMROGRAMAN BERORIENTASI OBJEK (JAVA) repaint();

try

{ Thread.sleep(DELAY);

} catch (Exception e) {} } }

protected void keyPressed(int keyCode) { int key = getGameAction(keyCode); switch (key) { case UP: if (y > 0) {y--;repaint();} break;

case DOWN: if (y < tinggi_canvas - BALL_SIZE) {y++;repaint();} break;

case LEFT: if (x > 0) {x--;repaint();} break;

case RIGHT: if (x < lebar_canvas - BALL_SIZE) {x++;repaint();} break;

case FIRE: if (running) running = false; else showNotify(); break; } }

public void commandAction(Command c, Displayable d) { if (c == cmdExit) { bp.destroyApp(true); } } } Nurochman, Teknik Informatika UIN Sunan Kalijaga Yogyakarta 2010



public class BolaPantul extends MIDlet { private Display display; private Media media;

public BolaPantul() { media = new Media(this); }

protected void startApp() { display = Display.getDisplay(this); display.setCurrent(media); }

protected void pauseApp() { }

public void destroyApp(boolean unconditional) { notifyDestroyed(); } }


MODUL PRAKTIKUM PEMROGRAMAN BERORIENTASI OBJEK (JAVA) PERTEMUAN 12 WIRELESS JAVA PROGRAMMING WITH JAVA 2 MICRO EDITION (J2ME)

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