Consider the following array declaration: 

boolean[] arr = new boolean[4];

what does the number 4 in the above code tell us about this array?

The array has a length of 4.
  • That this array contains 3 false values and 1 true value.
  • That we have made 4 boolean arrays.
  • The last index in the array will be 4.

There are no hints for this question