Container als Elemente von Containern

setLayout (new BorderLayout ());
      
add (new Button ("Top"), BorderLayout.NORTH);
add (new Button ("Foo"), BorderLayout.WEST);
      
Panel p = new Panel (); 
p.setLayout (new GridLayout (10,0));
for (int k = 0; k < 97; k++) {
  p.add (new Button( "B" + k ));
}
add (p, BorderLayout.CENTER);

beachte: das ist möglich wegen class Container extends Component