1. Scrolling text field This is a classic multithreading program. Write a program that displays a text field, containing text that moves from right to left. A button starts the scrolling and another...

1. Scrolling text field This is a classic multithreading program. Write a program that displays a text field, containing text that moves from right to left. A button starts the scrolling and another stops it. You will need to use method substring for string manipulation (see Chapter 15).

2.  1. One, the user-interface thread.

     2. Two.

    3. Three.

3. Two, the user-interface thread and one ball thread.

4. if ((event.getSource() == go1) && !(ball1.isAlive())) {

ball1 = new Ball(panel1);

ball1.start();

}