Question

Consider the following code segment.

int[] arr = {1, 2, 3, 4, 5, 6, 7}; for (int k = 3; k < arr.length - 1; k++) arr[k] = arr[k + 1]; Which of the following represents the contents of arr as a result of executing the code segment?

a. {1, 2, 3, 5, 6, 7, 8}

b. {1, 2, 3, 4, 5, 6, 7}

c. {1, 2, 3, 5, 6, 7}

d. {1, 2, 3, 5, 6, 7, 7}

e. {2, 3, 4, 5, 6, 7, 7}

Answer 1

Answer: d. {1, 2, 3, 5, 6, 7, 7}

Code:

import java.util.Arrays;
public class Main
{
   public static void main(String[] args) {
        int[] arr = {1, 2, 3, 4, 5, 6, 7};
        for (int k = 3; k < arr.length - 1; k++) arr[k] = arr[k + 1];
       System.out.println(Arrays.toString(arr));
   }
}

Result: