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.BorderFactory;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.SwingConstants;

public class Main {

    public static void main(String[] args) {
        int BTN_COUNT = 3;
        int VERT_GAP = 10;
        int EB_GAP = 5;
        float TITLE_SIZE = 36f;
        String TITLE_TEXT = "This is my Title";

        JLabel titleLabel = new JLabel(TITLE_TEXT, SwingConstants.CENTER);
        titleLabel.setFont(titleLabel.getFont().deriveFont(TITLE_SIZE));
        JPanel titlePanel = new JPanel();
        titlePanel.add(titleLabel);

        JPanel buttonPanel = new JPanel(new GridLayout(1, 0, 5, 0));
        for (int i = 0; i < BTN_COUNT; i++) {
            JButton btn = new JButton("Button " + (i + 1));
            buttonPanel.add(btn);
        }

        JTextArea textArea = new JTextArea(20, 30);

        JPanel mainPanel = new JPanel();
        mainPanel.setBorder(BorderFactory.createEmptyBorder(EB_GAP, EB_GAP, EB_GAP, EB_GAP));
        mainPanel.setLayout(new BoxLayout(mainPanel, BoxLayout.PAGE_AXIS));
        mainPanel.add(titlePanel);
        mainPanel.add(Box.createVerticalStrut(VERT_GAP));
        mainPanel.add(buttonPanel);
        mainPanel.add(Box.createVerticalStrut(VERT_GAP));
        mainPanel.add(new JScrollPane(textArea));

        JFrame frame = new JFrame();
        frame.getContentPane().add(mainPanel, BorderLayout.CENTER);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.pack();
        frame.setVisible(true);

    }
}