Answer:
Hi!
The correct answer is d. Neither (a) nor (b) is true.
Explanation:
First, you have to know what the scripts intend to do, and they are counting from 1 to 10 in both cases.
Table of results of class TestA at end of each iteration:
[j = 0, counter = 1]
[j = 10, counter = 2]
[j = 20, counter = 3]
[j = 30, counter = 4]
[j = 40, counter = 5]
[j = 50, counter = 6]
[j = 60, counter = 7]
[j = 70, counter = 8]
[j = 80, counter = 9]
[j = 90, counter = 10]
Table of results of class TestB at end of each iteration:
[j = 10, counter = 1]
[j = 9, counter = 2]
[j = 8, counter = 3]
[j = 7, counter = 4]
[j = 6, counter = 5]
[j = 5, counter = 6]
[j = 4, counter = 7]
[j = 3, counter = 8]
[j = 2, counter = 9]
[j = 1, counter = 10]
That's why a) and b) are false.
Maybe you want to know why using pre increments on class TestB doesn't affect the loop. The reason is that when enters in a loop, first checks the test condition and takes the decision if true or false, and last executes the incrementation step.
