Which of the sets of statements below will add 1 to x if x is positive and subtract 1 from x if x is negative but leave x alone if x is 0? A) if (x 0) x++; Else x--; B) if (x 0) x++; Else if (x 0) x++; If (x

Question

Which of the sets of statements below will add 1 to x if x is positive and subtract 1 from x if x is negative but leave x alone if x is 0? A) if (x > 0) x++; Else x--; B) if (x > 0) x++; Else if (x < 0) x--; C) if (x > 0) x++; If (x < 0) x--; Else x = 0; D) if (x == 0) x = 0; Else x++; X--; E) x++; X--;

Quizplus · Accepted Answer

Option A: This will increment x if it is positive, and decrement x if it is negative. However, it doesn't leave x as it is if it is 0.
Option B: This will increment x if it is positive, and decrement x if it is negative. If x = 0, it will leave x as it is.
Option C: This will increment x if it is positive, decrement x if it is negative, and set x to 0 if it is 0. This is not a valid solution for the given problem statement.
Option D: This will only leave x as it is if it is 0. It will increment x if x is not 0, which is not what the problem statement requires.
Option E: This will either increment or decrement x regardless of its sign. It will not leave x as it is if it is 0.

Thus, the best choice is B since it satisfies the conditions stated in the problem statement.

Which of the Sets of Statements Below Will Add 1