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Comboxbox_2022

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
class l3_combo{
    JFrame f;
    JLabel lbl; 
    JComboBox jcb;
    String[] countries={"Nepal","China","Malaysia","India","Lanka"};
    public l3_combo(){
        jcb = new JComboBox(countries);
        lbl = new JLabel("Countries");
        f = new JFrame();
        f.setLayout(new FlowLayout());
        f.setSize(400,300);
        f.setVisible(true);
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.add(lbl);
        f.add(jcb);
        jcb.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent eee){
                f.setTitle(""+jcb.getSelectedItem());
                f.setBounds(300,400,300,200);
                //f.setVisible(false);
            }
        });
    }
    public static void main(String[] anglaiii){
        new l3_combo();
    }
}