super("Box & Strut Frame");
setSize(370, 80);
Box box = Box.createHorizontalBox();
setContentPane(box);
for (int i = 0; i < 3; i++) {
Button b = new Button("B" + i);
box.add(b);
}
// Add a spacer between the first three buttons and the last three
box.add(Box.createHorizontalStrut(10));
for (int i = 3; i < 6; i++) {
Button b = new Button("B" + i);
box.add(b);
}
setDefaultCloseOperation(EXIT_ON_CLOSE);
setVisible(true);