Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.awt.BorderLayout;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextField;

public class Main {
    public static void main(String[] args) {
        JPanel panel = new JPanel(new GridBagLayout());
        for (int i = 0; i < 25; i++) {
            JTextField field = new JTextField("Field " + i, 20);
            GridBagConstraints constraints = new GridBagConstraints();
            constraints.gridy = i;
            panel.add(field, constraints);
        }
        JScrollPane scrollPane = new JScrollPane(panel);
        JButton removeButton = new JButton("Remove Field");
        removeButton.addActionListener(e -> {
            if (panel.getComponentCount() >= 1) {
                panel.remove(panel.getComponentCount() - 1);
                scrollPane.revalidate();
                scrollPane.repaint();
            }
        });
        JFrame f = new JFrame();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.setSize(640, 480);
        f.setLocation(200, 200);
        f.getContentPane().add(scrollPane);
        f.getContentPane().add(removeButton, BorderLayout.SOUTH);
        f.setVisible(true);
    }
}