Which of the following for loops is illegal?
A)for (int i = 0; ; ) { }
B)for (int i = 0) { }
C)for (int i = 0, k = 1; ; i++) { }
D)for ( ; ; )

Question

Quizplus · Accepted Answer

Option B is illegal because it lacks the semicolons required to separate the sections of the for loop declaration. A for loop must have two semicolons to separate its initialization, condition, and increment/decrement sections, even if some of these sections are left empty.

Which of the Following for Loops Is Illegal