1. Insert the following line immediately below line 9, which displays "Goodbye": JOptionPane.showMessageDialog(null, "Finishing now"); Compile and run the modified program. 2. kitchenCD.start();...

1. Insert the following line immediately below line 9, which displays "Goodbye":

JOptionPane.showMessageDialog(null, "Finishing now");

Compile and run the modified program.

2. kitchenCD.start();

kitchenCD.stop();

bedroomCD.start();

bedroomCD.stop();

bedroomCD.select(3);

3. Replace 300 by 150 in line 11, then recompile and run the program.