Question: Modify Listing 14.21, ClockPane.java, to add the animation into this class and add two methods start() and stop() to start and stop the clock, respectively.

Modify Listing 14.21, ClockPane.java, to add the animation into this class and add two methods start() and stop() to start and stop the clock, respectively. Write a program that lets the user control the clock with the Start and Stop buttons, as shown in Figure 15.38a.

e00 Exercisel5 32 12 Stop Start (a)

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