CMSC 351 Lecture Notes - Lecture 20: Urt

22. What does the following method return when the input array is { 1, 2, 3} ? public static int mystery (int[] array) { int i = 0; int count = 0; while (i <= array.length) { if (array[i] : 2 == 0) { count++; i++; return count; (A) There is a runtime error. (B) 3 (C) There is a compiler error. (D) O (E) 2

57. Line 5 (A) for (int j = -i*2; j<= i*2; j++){ (B) for (int j = 0; j< i+2+1; j++){ (C) for (int j = -i; j> i; j++) { (D) for (int j = 0; j<= i*2; j++){ (E) for (int j = i; j<= i+2; j+i) {

16. Suppose m and n are both int variables with positive values. Which of the following boolean expressions are guaranteed to be equal in value to the expression that follows? (m % n == 0 && n % m == 0) • I. m == • II. ! (m III. ! (m n n) > n) (A) I and III (B) I, II, and III (C) I and II (D) None of the expressions are guaranteed to be the same. (E) I only