Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.awt.BorderLayout;
import java.awt.GridLayout;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;

public class Main {
    JFrame frame = new JFrame();
    JButton jButton1 = new JButton("Add Checkbox");
    JPanel jPanel1 = new JPanel();
    JScrollPane jScrollPane1 = new JScrollPane(jPanel1);

    public Main() {
        jPanel1.setLayout(new GridLayout(0, 2, 10, 10));
        jButton1.addActionListener(e -> {
            JCheckBox cb = new JCheckBox("New CheckBox");
            jPanel1.add(cb);
            jPanel1.revalidate();
            jPanel1.repaint();
        });
        frame.add(jScrollPane1);
        frame.add(jButton1, BorderLayout.SOUTH);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(300, 200);
        frame.setVisible(true);
    }

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