sumitkumargiri/create-checkbox-in-java

Create-CheckBox-in-java

import java.awt.Color; import java.awt.event.; import javax.swing.;

class fr9 extends JFrame implements ItemListener { JRadioButton r1, r2, r3; ButtonGroup brg; JLabel lb;

fr9() {
    setLayout(null);

    brg = new ButtonGroup();

    r1 = new JRadioButton("RED");
    r2 = new JRadioButton("GREEN");
    r3 = new JRadioButton("BLUE");

    brg.add(r1);
    brg.add(r2);
    brg.add(r3);

    lb = new JLabel("This is Label");

    r1.setBounds(100, 100, 150, 30);
    r2.setBounds(300, 100, 150, 30);
    r3.setBounds(500, 100, 150, 30);
    lb.setBounds(100, 200, 200, 30);

    add(r1);
    add(r2);
    add(r3);
    add(lb);

    r1.addItemListener(this);
    r2.addItemListener(this);
    r3.addItemListener(this);

    setDefaultCloseOperation(EXIT_ON_CLOSE);
    setSize(500, 500);
    setVisible(true);
}

@Override
public void itemStateChanged(ItemEvent e) {
    if (e.getSource() == r1) {
        lb.setForeground(Color.RED);
    } else if (e.getSource() == r2) {
        lb.setForeground(Color.GREEN);
    } else {
        lb.setForeground(Color.BLUE);
    }
}

public static void main(String[] args) {
    fr9 obj1 = new fr9();
}

}