Question

How do you create a BoxLayout in Java?

Answer 1

To create a BoxLayout in Java, you need to specify the container on which you want to apply the layout and the desired orientation (horizontal or vertical). 

Here's an example:

import javax.swing.*;

public class BoxLayoutExample {
    public static void main(String[] args) {
        JFrame frame = new JFrame("BoxLayout Example");
        JPanel panel = new JPanel();
        
        // Set the panel's layout manager to BoxLayout
        panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
        
        // Add components to the panel
        panel.add(new JButton("Button 1"));
        panel.add(new JButton("Button 2"));
        panel.add(new JButton("Button 3"));
        
        // Add the panel to the frame
        frame.getContentPane().add(panel);
        
        // Set frame properties and make it visible
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.pack();
        frame.setVisible(true);
    }
}
 

This example creates a JFrame with a JPanel that uses a vertical BoxLayout. It adds three JButton components to the panel.