import java.awt.Container;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
public class GridBagLayoutRemainder {
public static void main(String[] args) {
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Container pane = f.getContentPane();
pane.setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
pane.add(new JButton("First row, first column"), gbc);
pane.add(new JButton("First row, second column"), gbc);
pane.add(new JButton("First row, third column"), gbc);
gbc.gridx = 0;
pane.add(new JButton("Second row"), gbc);
gbc.gridwidth = GridBagConstraints.REMAINDER;
gbc.fill = GridBagConstraints.HORIZONTAL;
pane.add(new JButton("Third row, gridwidth set to REMAINDER"), gbc);
f.setSize(600, 300);
f.setVisible(true);
}
}
