1. Generally speaking, it is better to a define a main window of a fixed size b allow the user to alter the size of a main window 2. The rows and columns in a grid layout are numbered starting from a...

1. Generally speaking, it is better to

a define a main window of a fixed size

b allow the user to alter the size of a main window

2. The rows and columns in a grid layout are numbered starting from

a (0, 0)

b (1, 1)

3. Write a GUI-based program that implements the bouncy program example discussed in Section 9.1.