How to set horizontal gap between elements in a GridLayout with Java?

Use the setHgap() method to set the horizontal gap between elements in a GridLayout. Let’s say we have a GridLaypout −

GridLayout layout = new GridLayout(2,4);

Set the horizontal gap −

layout.setHgap(25);

The following is an example −

Example

package my;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.GridLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.WindowConstants;
public class SwingDemo {
   public static void main(String[] args) {
      JFrame frame = new JFrame("Sections");
      JPanel panel = new JPanel();
      panel.setBackground(Color.blue);
      GridLayout layout = new GridLayout(2,4);
      layout.setHgap(25);
      panel.setLayout(layout);
      panel.add(new JButton("Overview"));
      panel.add(new JButton("Samples"));
      panel.add(new JButton("Tutorials"));
      panel.add(new JButton("Support"));
      panel.add(new JButton("InterviewQA"));
      panel.add(new JButton("Tools"));
      panel.add(new JButton("Editors"));
      frame.add(panel);
      frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
      frame.setSize(500, 300);
      frame.setVisible(true);
   }
}

Output