Java tutorial
import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.Insets; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.awt.event.WindowListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; public class GridBagWithWeight { public static void main(String[] args) { JFrame f = new JFrame("Demonstrates the use of fill constraints"); JPanel p = new JPanel(new GridBagLayout()); GridBagConstraints c = new GridBagConstraints(); c.insets = new Insets(2, 2, 2, 2); c.weighty = 1.0; c.weightx = 1.0; c.gridx = 0; c.gridy = 0; c.gridheight = 2; c.fill = GridBagConstraints.BOTH; // Use both horizontal & vertical p.add(new JButton("Java"), c); c.gridx = 1; c.gridheight = 1; c.gridwidth = 2; c.fill = GridBagConstraints.HORIZONTAL; // Horizontal only p.add(new JButton("Source"), c); c.gridy = 1; c.gridwidth = 1; c.fill = GridBagConstraints.NONE; // Remember to reset to none p.add(new JButton("and"), c); c.gridx = 2; c.fill = GridBagConstraints.VERTICAL; // Vertical only p.add(new JButton("Support."), c); WindowListener wndCloser = new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } }; f.addWindowListener(wndCloser); f.getContentPane().add(p); f.setSize(600, 200); f.show(); } }