How To Use JCheckBox In Java NetBeans
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package JavaDB_001;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
public class Project extends JFrame {
//declare JCheckBox Object
JCheckBox ch;
public Project(){
ch = new JCheckBox("CheckBox");
//add Action to ch
ch.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
//if JCheckBox is selected
if(ch.isSelected()){
JOptionPane.showMessageDialog(null, "Checked");
}
// if JCheckBox is not selected
else
JOptionPane.showMessageDialog(null, "UnChecked");
}
});
ch.setBounds(160, 30, 90, 20);
add(ch);
setLayout(null);
setSize(400, 120);
setLocationRelativeTo(null);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
getContentPane().setBackground(Color.decode("#bdb76b"));
setVisible(true);
}
public static void main(String[] args) throws IOException{
new Project();
}
}
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| JCheckBox In JFrame |