Java Array Subtraction: Understanding Output Differences

What is the output of the following code snippet?

int[] x = {3, 1, 4, 1, 5, 9, 2};

int[] z = {0, 7, 3, 1, 9, 4, 9};

for(int j = 1; j ≤ 5; j++) {

  System.out.print(x[j] - z[j] + " ");

}

Output:

The output of the code will be "-6 1 0 -4 5," as it prints the differences of elements between the integer arrays x and z from indices 1 to 5.

Explanation:

The given code snippet showcases Java array subtraction in action. It defines two integer arrays, x and z, with specific elements assigned to each index. Then, it utilizes a for loop to iterate through a subset of the array elements, subtracts the respective elements from x and z, and prints the results along with a space.

To determine the output, we calculate the difference for indices 1 to 5 as follows:

  • x[1] - z[1] = 1 - 7 = -6
  • x[2] - z[2] = 4 - 3 = 1
  • x[3] - z[3] = 1 - 1 = 0
  • x[4] - z[4] = 5 - 9 = -4
  • x[5] - z[5] = 9 - 4 = 5

Therefore, the output of the code will be "-6 1 0 -4 5" (without the quotation marks).

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