Question

Given a one dimensional array arr, what is the correct way ofgetting the number of elements in arr

Answer 1

Answer:

The answer is option 1 arr.length.

Explanation:

In java arr.length gives the correct number of elements in the array.The length is function is only applicable for arrays.

The length() method is applicable for strings.

arr.length-1 will give 1 element less.

There is no .size for arrays in java.

So we conclude that arr.length is correct way of getting the number of elements in one dimensional array arr.