import javax.swing.*;
import java.awt.*;
 
public class Test17 {
  public static void main(String[] ps) {
    JFrame f = frame { 
      title = "Welcome!"
      content = panel of border layout {
        center = panel of gridbag layout {
          row = { new JButton("Button1"){} new JButton("Button2"){} <<<                      <<<                      }
          row = { new JButton("Button3"){} <<<                      ___                      new JButton("Button4"){} }
          row = { ___                      new JButton("Button5"){} new JButton("Button6"){} ^^^                      }
          row = { new JButton("Button7"){} <<<                      new JButton("Button8"){} ^^^                      }
          row = { ^^^                      ___                      new JButton("Button9"){} <<<                      }
        }
      }
    };
    f.pack();
    f.setSize(f.getPreferredSize());
    f.setVisible(true);
  }
}