Notes for Slide 09
Java will not allow you to attempt to get the value
of a double variable until you put a value into it.
The example program above on the left shows using an
input statement to place a number into the average variable.
The erroneous program above on the right shows a
second statement that is not acceptable Java because the
average variable would be empty when the second statement runs.
1, 2, 3, 4, 5, 6, 7, 8, [9 (top)], 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, [Lab]