Question

Consider the following code segment. int[arr - {{1, 2, 3, 4), {5, 6, 7, 8). {9, 10, 11, 12}}; int sum = 0; for (int[] x: arr) { for (int y = 0; y < x.length - 1; y++) { sum += x[y]: What is the value of sum as a result of executing the code segment?

Answer 1

The resulting value of sum after executing the code is 54, as the loop adds all elements of each sub-array except the last one.

Step-by-step explanation:

The question asks for the resulting value of the variable sum after executing a nested loop that iterates over a two-dimensional integer array arr. The given code segment adds the values of each sub-array except for the last element of each sub-array. To find the value of sum, we need to manually trace the code execution.

Here's the breakdown:

• First iteration of outer loop: sum += 1 + 2 + 3 = 6
• Second iteration of outer loop: sum += 5 + 6 + 7 = 18
• Third iteration of outer loop: sum += 9 + 10 + 11 = 30

The final result after executing the code segment is sum = 54.