MainClass.java Source code

Introduction

Here is the source code for MainClass.java

Source

import java.awt.Component;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;

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

public class MainClass extends JPanel {
    GridBagConstraints constraints = new GridBagConstraints();

    public MainClass() {
        setLayout(new GridBagLayout());
        int x, y; // for clarity
        addGB(new JButton("North"), x = 1, y = 0);
        constraints.ipadx = 25; // add padding
        constraints.ipady = 25;
        addGB(new JButton("West"), x = 0, y = 1);
        constraints.ipadx = 0; // remove padding
        constraints.ipady = 0;
        addGB(new JButton("Center"), x = 1, y = 1);
        addGB(new JButton("East"), x = 2, y = 1);
        addGB(new JButton("South"), x = 1, y = 2);
    }

    void addGB(Component component, int x, int y) {
        constraints.gridx = x;
        constraints.gridy = y;
        add(component, constraints);
    }

    public static void main(String[] args) {
        JFrame frame = new JFrame("MainClass");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        frame.setSize(250, 250);
        frame.setLocation(200, 200);
        frame.setContentPane(new MainClass());
        frame.setVisible(true);
    }
}