gistfile1.txt

JButton button;
Container contentPane = getContentPane();
GridBagLayout gridbag = new GridBagLayout();
GridBagConstraints c = new GridBagConstraints();
contentPane.setLayout(gridbag);
c.fill = GridBagConstraints.HORIZONTAL; 
   
button = new JButton("Button 1");
c.weightx = 0.5;
c.gridx = 0;
c.gridy = 0;
gridbag.setConstraints(button, c);
contentPane.add(button);

button = new JButton("2");
c.gridx = 1;
c.gridy = 0;
gridbag.setConstraints(button, c);
contentPane.add(button);

button = new JButton("Button 3");
c.gridx = 2;
c.gridy = 0;
gridbag.setConstraints(button, c);
contentPane.add(new JButton("Button 3"));

button = new JButton("Long-Named Button 4");
c.ipady = 40;      //make this component tall
c.weightx = 0.0;
c.gridwidth = 3;
c.gridx = 0;
c.gridy = 1;
gridbag.setConstraints(button, c);
contentPane.add(button);

button = new JButton("Button 5");
c.ipady = 0;       //reset to default
c.weighty = 1.0;   //request any extra vertical space
c.anchor = GridBagConstraints.SOUTH; //bottom of space
c.insets = new Insets(10,0,0,0);  //top padding
c.gridx = 1;       //aligned with button 2
c.gridwidth = 2;   //2 columns wide
c.gridy = 2;       //third row
gridbag.setConstraints(button, c);
contentPane.add(button);