ContainerFocusAutoTransferTest.java 文件源码

public TestFrame() {
    super("TestFrame");

    // The change of the orientation and the reverse order of
    // adding the buttons to the panel is because in Container.removeNotify()
    // the child components are removed in the reverse order.
    // We want that the focus owner (b0) would be removed first and
    // that the next traversable component would be b1.
    panel0.setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);
    panel0.add(b2);
    panel0.add(b1);
    panel0.add(b0);

    panel1.add(b3);
    panel1.add(b4);

    setLayout(new FlowLayout());
    add(panel0);
    add(panel1);
    pack();

    panel0.setBackground(Color.red);
    panel1.setBackground(Color.blue);
}