import javax.microedition.midlet.*;
import
javax.microedition.lcdui.*;
import
java.io.IOException;
public class
HitungNilaiRata2 extends MIDlet implements CommandListener {
private Display display;
private List list;
private Form form;
private Canvas canvas;
private TextField Ket;
private final Command cmdKeluar = new
Command("exit", Command.EXIT, 1);
private final Command cmdOK =new
Command("Lanjut", Command.OK, 1);
private final Command cmdKembali =
new Command("Kembali",
Command.BACK, 1);
TextField ketrngan = new
TextField("Keterangan :", "",12,TextField.ANY);
public HitungNilaiRata2() {
display =
Display.getDisplay(this);
list = new
List("Gabungan Geometri Low dan Hight", Choice.EXCLUSIVE);
list.append("Kotak",
null);
list.append("Lingkaran",
null);
list.append("Segitiga",
null);
list.append("Garis",
null);
list.append("Persegi
Panjang", null);
list.append("image",
null);
list.addCommand(cmdKeluar);
list.addCommand(cmdOK);
list.setCommandListener(this);
}
public void startApp() {
form = new Form("Menghitung Nilai
Rata-Rata");
Ket = new TextField("Ket
:",null,25,TextField.ANY);
form.append(Ket);
form.addCommand(cmdKeluar);
form.setCommandListener(null);
display.setCurrent(form);
display.setCurrent(list);
}
public void pauseApp() {
}
public void destroyApp(boolean
unconditional) {
}
public void commandAction(Command c, Displayable
s) {
if (c == cmdKeluar) {
destroyApp(false);
notifyDestroyed();
} else if (c == cmdKembali) {
display.setCurrent(list);
} else {
switch (list.getSelectedIndex()) {
case 0: {
canvas = (Segiempat) (new
Segiempat(this));
break;
}
case 1: {
canvas = (Lingkaran) (new
Lingkaran(this));
break;
}
case 2: {
canvas = (Segitiga) (new
Segitiga(this));
break;
}
case 3: {
canvas = (Garis) (new Garis(this));
break;
}
case 4: {
canvas = (Segi) (new Segi(this));
break;
}
case 5: {
canvas = (img) (new img(this));
break;
}
}
canvas.addCommand(cmdKembali);
canvas.setCommandListener(this);
display.setCurrent(canvas);
}
}
class Segiempat extends Canvas {
private HitungNilaiRata2 midlet;
public Segiempat(HitungNilaiRata2 midlet)
{
this.midlet = midlet;
}
public void paint(Graphics g) {
g.setColor(255, 255, 255);
g.fillRect(0, 0, getWidth(),
getHeight());
g.setColor(0, 0, 0);
g.drawRect(55, 55, 60, 60);
g.setColor(255, 0, 0);
g.fillRect(56, 56, 59, 59);
g.drawLine(55, 55, 60, 60);
}
};
class Lingkaran extends Canvas {
private HitungNilaiRata2 midlet;
public Lingkaran(HitungNilaiRata2 midlet)
{
this.midlet = midlet;
}
public void paint(Graphics g) {
g.setColor(255, 255, 255);
g.fillRect(0, 0, getWidth(),
getHeight());
g.setColor(255, 0, 0);
g.fillArc(55, 55, 60, 60, 0, 360);
}
};
class Segitiga extends Canvas {
private HitungNilaiRata2 midlet;
public Segitiga(HitungNilaiRata2 midlet)
{
this.midlet = midlet;
}
public void paint(Graphics g) {
g.setColor(255, 255, 255);
g.fillRect(0, 0, getWidth(),
getHeight());
g.setColor(255, 0, 0);
g.fillTriangle(5, 10, 30, 10, 5, 125);
}
};
class Garis extends Canvas {
private HitungNilaiRata2 midlet;
public Garis(HitungNilaiRata2 midlet)
{
this.midlet = midlet;
}
public void paint(Graphics g) {
g.setColor(255, 255, 255);
g.fillRect(0, 0, getWidth(),
getHeight());
g.setColor(0, 0, 0);
g.drawLine(50, 55, 60, 180);
}
};
class Segi extends Canvas {
private HitungNilaiRata2 midlet;
public Segi(HitungNilaiRata2 midlet) {
this.midlet = midlet;
}
public void paint(Graphics g) {
g.setColor(255, 255, 255);
g.fillRect(0, 0, getWidth(),
getHeight());
g.setColor(255, 0, 0);
g.drawRoundRect(108,50,88,44,18,18);
g.fillRoundRect(108,120,88,44,18,18);
//g.drawString("bunga", UP, UP,
UP);
}
};
class img extends Canvas {
private HitungNilaiRata2 midlet;
public img(HitungNilaiRata2 midlet) {
this.midlet = midlet;
}
public void paint(Graphics g) {
Image img = null;
try{
img=Image.createImage("/husna.jpg");
}
catch(Exception exc){
}
g.drawImage(img,
getWidth()/2,getHeight()/2, Graphics.VCENTER | Graphics.HCENTER);
};
}
}
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