import java.awt.*; 
import java.util.*; 
import java.applet.Applet;

public class GridBagLayoutApplet extends Applet 
{
     protected void makebutton(String name,
                               GridBagLayout gridbag,
                               GridBagConstraints c) 
     {
         Button button = new Button(name);
         gridbag.setConstraints(button, c);
         add(button);
     }

     public void init() 
     {
         GridBagLayout gridbag = new GridBagLayout();
         GridBagConstraints c = new GridBagConstraints();
         setFont(new Font("Helvetica", Font.PLAIN, 14));
         setLayout(gridbag);
         c.fill = GridBagConstraints.BOTH;
         c.weightx = 1.0;
         makebutton("Button1", gridbag, c);
         makebutton("Button2", gridbag, c);
         makebutton("Button3", gridbag, c);
           c.gridwidth = GridBagConstraints.REMAINDER; //end row
         makebutton("Button4", gridbag, c);
           c.weightx = 0.0;        //reset to the default
         makebutton("Button5", gridbag, c); //another row
       c.gridwidth = GridBagConstraints.RELATIVE; //next-to-last in row
         makebutton("Button6", gridbag, c);
       c.gridwidth = GridBagConstraints.REMAINDER; //end row
         makebutton("Button7", gridbag, c);
       c.gridwidth = 1;        //reset to the default      
         c.gridheight = 2;
         c.weighty = 1.0;         makebutton("Button8", gridbag, c);
         c.weighty = 0.0;          //reset to the default
       c.gridwidth = GridBagConstraints.REMAINDER; //end row
       c.gridheight = 1;           //reset to the default
         makebutton("Button9", gridbag, c);
         makebutton("Button10", gridbag, c);
         setSize(300, 100);
     }

     public static void main(String args[]) {
       Frame f = new Frame("GridBag Layout Example");
       GridBagLayoutApplet ex1 = new GridBagLayoutApplet();
       ex1.init();
       f.add("Center", ex1);
       f.pack();
       f.setSize(f.getPreferredSize());
       f.show();
     }
 }