TUGAS

Pogram JCheckBox.java

 

Pada langkah-langkah praktikum telah di buat contoh Program EventButton, Program EventRadio, Program EventComboBox. Sekarang adalah langkah memodifikasi program EventRadio.java dengan mengganti JRadioButton dengan menggunakan JCheckBox, seperti contoh program di bawah ini :

Pogram JCheckBox.java

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

class CheckBoxHandling extends JFrame implements ItemListener{

private JTextField teks;

private JPanel panel;

private JCheckBox rbTn1,rbTn2,rbTn3;

public CheckBoxHandling(){

setTitle("coba checkBox Handling");

teks=new JTextField ("jenis kelamin : pilihan");

teks.setHorizontalAlignment(SwingConstants.CENTER);

panel=new JPanel (new FlowLayout());

rbTn1=new JCheckBox ("pria");

rbTn2=new JCheckBox ("wanita");

rbTn3=new JCheckBox ("banci");

ButtonGroup group=new ButtonGroup();

group.add(rbTn1);

group.add(rbTn2);

group.add(rbTn3);

rbTn1.addItemListener(this);

rbTn2.addItemListener(this);

rbTn3.addItemListener(this);

setLayout (new BorderLayout());

add(teks, "North");

add(panel, "West");

panel.add(rbTn1);

panel.add(rbTn2);

panel.add(rbTn3);

pack();

setVisible(true);

setLocation(200,200);

setDefaultCloseOperation(EXIT_ON_CLOSE);

}

public void itemStateChanged(ItemEvent event){

if(event.getSource()==rbTn1){

if(event.getStateChange()==ItemEvent.SELECTED)

teks.setText("jenis kelamin : pria");

}

if(event.getSource()==rbTn2){

if(event.getStateChange()==ItemEvent.SELECTED)

teks.setText("jenis kelamin : wanita");

}

if(event.getSource()==rbTn3){

if(event.getStateChange()==ItemEvent.SELECTED)

teks.setText("jenis kelamin : banci");

}

}

}

public class EventCheckBox{

public static void main (String[]args){

new CheckBoxHandling();

}

}

Output :