MainClass.java Source code

Introduction

Here is the source code for MainClass.java

Source

import java.awt.Container;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.Spring;
import javax.swing.SpringLayout;

public class MainClass {

    public static void main(String[] args) {
        JFrame aWindow = new JFrame("This is a Spring Layout");
        aWindow.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        aWindow.setSize(500, 500);
        SpringLayout layout = new SpringLayout();
        Container content = aWindow.getContentPane();
        content.setLayout(layout);

        JButton[] buttons = new JButton[6];
        SpringLayout.Constraints constr = null;
        for (int i = 0; i < buttons.length; i++) {
            buttons[i] = new JButton("Press " + (i + 1));
            content.add(buttons[i]);
        }

        Spring xSpring = Spring.constant(5, 15, 25);
        Spring ySpring = Spring.constant(10, 30, 50);

        constr = layout.getConstraints(buttons[0]);
        constr.setX(xSpring);
        constr.setY(ySpring);

        for (int i = 1; i < buttons.length; i++) {
            constr = layout.getConstraints(buttons[i]);
            layout.putConstraint(SpringLayout.WEST, buttons[i], xSpring, SpringLayout.EAST, buttons[i - 1]);
            layout.putConstraint(SpringLayout.NORTH, buttons[i], ySpring, SpringLayout.SOUTH, buttons[i - 1]);
        }
        aWindow.setVisible(true); // Display the window
    }
}