Question

When we write num[100] = 99.

How many elements can be stored inside the array variable num ?

Select one:
The statement gives no clue about the number of elements can be stored
100
99
Infinite number of elements

Answer 1

Explanation:

Among the various options given in question statement the correct option is the third one.  

A multidimensional array of dimension N is a collection of N-1 dimensions. For example a 4 dimensional array is a collection of 3 dimensional arrays. An multidimensional array or a single dimensional array can contain pointer elements

Answer 2

Answer:

import java.util.*;

public class MyClass

{

   public static void main(String args[])

   {

       Scanner Sc = new Scanner(System.in);

       int num[] = new int[101];

       num[100] = 99;

       System.out.println("Length of array : " + num.length);

       System.out.println("100th element : " + num[100]);

   }

}

If we consider the above example, then, in that case, the number of elements in the array is 101, and as the indexing starts from 0 to N-1, so, the index of the last element is 100 and we have stored 99 at that index.

So, the output is:

Length of array : 101

100th element : 99