Alternative_applet

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

public class MySwingApp extends JFrame implements ActionListener {
    private JTextField n = new JTextField(10);
    private ButtonGroup g = new ButtonGroup();
    private JRadioButton m = new JRadioButton("Male", true);
    private JRadioButton f = new JRadioButton("Female", false);
    private JComboBox<String> c = new JComboBox<>();
    private JLabel l1 = new JLabel("Enter Name: ");
    private JLabel l2 = new JLabel("Select Gender: ");
    private JLabel l3 = new JLabel("Age: ");
    private JButton b1 = new JButton("Submit");
    private String name = "", gender = "";
    private int age;

    public MySwingApp() {
        super("My Swing App");
        setLayout(new FlowLayout());

        g.add(m);
        g.add(f);
        add(l1);
        add(n);
        add(l2);
        add(m);
        add(f);
        add(l3);
        c.addItem("18");
        c.addItem("19");
        c.addItem("20");
        c.addItem("21");
        add(c);
        add(b1);
        b1.addActionListener(this);

        setSize(300, 200);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setVisible(true);
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        name = n.getText();
        gender = g.getSelection().getActionCommand();
        age = Integer.parseInt((String) c.getSelectedItem());
        repaint();
    }

    @Override
    public void paint(Graphics g) {
        super.paint(g);
        g.drawString("Name: " + name, 20, 100);
        g.drawString("Gender: " + gender, 20, 120);
        g.drawString("Age: " + age, 20, 140);
    }

    public static void main(String[] args) {
        new MySwingApp();
    }
}