Unit 4 Test EXAM QUESTIONS &ANSWERS GRADED A+

Unit 4 Test Consider the following code segment. for (int x = 0; x <= 4; x++) // Line 1 { for (int y = 0; y < 4; y++) // Line 3 { S("a"); } Sln(); } Which of the following best explains the effect of simultaneously changing x <= 4 to x < 4 in line 1 and y < 4 to y <= 4 in line 3 ? "a" will be printed fewer times because while each output line will have the same length as before, the number of lines printed will decrease by 1. A "a" will be printed more times because while the number of output lines will be the same as before, the length of each output line will increase by 1. B "a" will be printed the same number of times because while the number of output lines will decrease by 1, the length of each line will increase by 1. C "a" will be printed more times because both the number of output lines and the length of each line will increase by 1. D The output of the code segment will not change in any way. "a" will be printed the same number of times because while the number of output lines will decrease by 1, the length of each line will increase by 1. C Consider the following method. public int mystery(int num) { int x = num; while (x > 0) { if (x / 10 % 2 == 0) return x; x = x / 10; } return x; } What value is returned as a result of the call mystery(1034) ? 4 A 10