How to add components with a relative Y position in Java?\\n

To add components with a relative Y position, use the GridBagConstraints.RELATIVE constant. Set this to gridy field −

GridBagConstraints constraints = new GridBagConstraints();
constraints.gridy = GridBagConstraints.RELATIVE;

The following is an example to add components with a relative Y position in Java −

Example

package my;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class SwingDemo {
   public static void main(String[] args) {
      JFrame frame = new JFrame();
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      JPanel panel = new JPanel();
      panel.setLayout(new GridBagLayout());
      GridBagConstraints constraints = new GridBagConstraints();
      constraints.gridx = 0;
      panel.add(new JButton("1st row"), constraints);
      constraints.gridx = 1;
      constraints.gridy = GridBagConstraints.RELATIVE;
      panel.add(new JButton("1st row 2nd column"), constraints);
      panel.add(new JButton("2nd row 2nd column"), constraints);
      frame.add(panel);
      frame.setSize(550, 300);
      frame.setVisible(true);
   }
}

Output