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 GridBagWithContaints { public static void main(String[] args) { JFrame f = new JFrame("Demonstrates the use of gridx, gridy,ipadx, ipady and insets constraints"); JPanel p = new JPanel(); p.setLayout(new GridBagLayout()); // creates a constraints object GridBagConstraints c = new GridBagConstraints(); c.insets = new Insets(2, 2, 2, 2); // insets for all components c.gridx = 0; // column 0 c.gridy = 0; // row 0 c.ipadx = 5; // increases components width by 10 pixels c.ipady = 5; // increases components height by 10 pixels p.add(new JButton("Java"), c); // constraints passed in c.gridx = 1; // column 1 // c.gridy = 0; // comment out this for reusing the obj c.ipadx = 0; // resets the pad to 0 c.ipady = 0; p.add(new JButton("Source"), c); c.gridx = 0; // column 0 c.gridy = 1; // row 1 p.add(new JButton("and"), c); c.gridx = 1; // column 1 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(); } }