public ContainerOrderFTPTest() {
    expectedTraversal = "B1B2F1";
    b1 = new Button("B1");
    b2 = new Button("B2");
    frame = new Frame("F1");

    frame.setLayout(new FlowLayout());
    frame.setSize(200, 200);
    coftp = new ContainerOrderFocusTraversalPolicy();
    frame.setFocusTraversalPolicy(coftp);
    frame.add(b1);
    frame.add(b2);
    frame.setVisible(true);
}