Membuat Aplikasi Handphone, hitung Luas Balok, dengan Menggunakan Java
Untuk membuat aplikasi hitungan di atas, berikut listing programnya :
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import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
public class A extends MIDlet implements CommandListener {
TextField
p,l,luas;
Form fr;
Display D;
Command proses;
public A(){
proses=new
Command("Hasil",Command.OK,0);
p=new
TextField("panjang :","",20,TextField.NUMERIC);
l=new
TextField("lebar :","",20,TextField.NUMERIC);
fr=new
Form("tes");
fr.addCommand(proses);
fr.append(p);
fr.append(l);
fr.setCommandListener(this);
}
public void
startApp() {
D =
Display.getDisplay(this);
D.setCurrent(fr);
}
public void
pauseApp() {
}
public void
destroyApp(boolean unconditional) {
}
public void
commandAction(Command C, Displayable arg1) {
int xluas;
if
(C==proses){
int xp =
Integer.parseInt(p.getString());
int
xl=Integer.parseInt(l.getString());
xluas =
xp*xl;
String
S=String.valueOf(xluas);
luas=new
TextField("Luas",S,20,TextField.NUMERIC);
fr.append(luas);
}
}
}
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