Implement this constructor

[Willie Toma]

I've been unable to run this code. I tried to implement this constructor in a class. Does anyone have any suggenstions? What i've tried hasn't worked.

public void GridBagDemo() {
    super("GridBagLayout");  //Frame with title
    setFont(new Font("Helvietica", Font.BOLD, 18));
    addWindowListener(new WindowAdapter(){
      public void windowClosing(WindowEvent evt){System.exit(0);}
    } );
    setSize(220, 200);
    Button button;
    GridBagLayout gridbag = new GridBagLayout();
    GridBagConstraints c = new GridBagContstraints();
    setLayout(gridbag);
    button = new Button("Button A");
    c.insets = new Insets(5,5,5,5);
    c.fill = GridBagConstraints.HORIZONTAL;
    c.gridx = 0;
    c.gridy=0;
    c.gridwidth = 2;
    c.gridheight = 2;
    c.weightx = 0.5;
    c.weighty  = 0.5;
    c.anchor = GridBagConstraints.SOUTH;
    gridbag.setConstraints(button, c);
    add(button);
    button = new Button("B");
    c.fill = GridBagConstraints.NONE;
    c.gridx = 2;
    c.gridy = 1;
    c.gridwidth = 1;
    c.gridheight = 1;
    c.anchor = GridBagConstraints.CENTER;
    gridbag.setConstraints(button, c);
    add(button);
    button = new Button ("Button C");
    c.gridx = 0;
    c.gridy = 2;
    c.gridwidth = 1;
    c.gridheight = 1;
    gridbag.setConstraints(button, c);
    add(button);
  }

[Wilfried LAURENT]

Can you be more specific when you say you could not "run" this example? What happens? Compilation error? RunTime Error? The result is not what you expected?
W.

[Bill Krieger]

Originally posted by Willie Toma:
[B]I've been unable to run this code. I tried to implement this constructor in a class. Does anyone have any suggenstions? What i've tried hasn't worked.

public void GridBagDemo() {
    super("GridBagLayout");  //Frame with title
    setFont(new Font("Helvietica", Font.BOLD, 18));
    [ snip ]

[/B]

Your GridbagDemo class doesn't explicitly extend any other class. Therefore super("GridBagLayout") will fail, as Object has no such constructor. Did you intend for this class to extend Frame?

[Willie Toma]

It was an incomplete example that was in a book.
To display the example I tried to place it in the following block of code.
[CODE]
import java.awt.*;
import java.awt.event.*;
class GridBag extends Frame{
public static void main(String[] args){
new GridBagDemo().show();
}
// Example code here
}
Is this the correct way to go about this. Thanks in advance