IndependenceSwingTest.java 文件源码

public IndependenceSwingTest() {

        frame = new JFrame();
        frame.setSize(200, 200);

        // This textfield will be used to update the contents of clipboards
        tf1 = new JTextField();
        tf1.addFocusListener(new FocusAdapter() {
            public void focusGained(FocusEvent fe) {
                tf1.setText("Clipboards_Independance_Testing");
            }
        });

        // TextFields to get the contents of clipboard
        tf2 = new JTextField();
        tf3 = new JTextField();

        panel = new JPanel();
        panel.setLayout(new BorderLayout());

        panel.add(tf2, BorderLayout.NORTH);
        panel.add(tf3, BorderLayout.SOUTH);

        frame.add(tf1, BorderLayout.NORTH);
        frame.add(panel, BorderLayout.CENTER);

        frame.setVisible(true);
        tf1.requestFocus();
    }