Question

I declared an array as shown below:

int[] arr = new int[10];

Then I assigned following values to the array:

arr[0] = 1;
arr[1] = 2;
arr[2] = 3;
arr[3] = 4;

Then I declared and initialized an integer variable:

int arrayLength = arr.length;

Will arrayLength contain 10, the allocated size of the array or 4, the count of elements that have been explicitly assigned?

Answer 1

It contains the allocated size, 10. The unassigned indexes will contain the default value which is 0 for int.