Check out example codes for "define array in c++". It will help you in understanding the concepts better.

Code Example 1

// Array declaration by specifying size and initializing 
// elements 
int arr[6] = { 10, 20, 30, 40 } 
  
// Compiler creates an array of size 6, initializes first 
// 4 elements as specified by user and rest two elements as 0. 
// above is same as  "int arr[] = {10, 20, 30, 40, 0, 0}"

Code Example 2

int foo [5];

Code Example 3

string cars[4] = {"Volvo", "BMW", "Ford", "Mazda"};

Code Example 4

#include <iostream>
using std::cout;

int a[] = { 1, 2, 3, 4, 5 };
int counta()
  {
  return sizeof( a ) / sizeof( a[ 0 ] );  // works, since a[] is an array
  }

int countb( int b[] )
  {
  return sizeof( b ) / sizeof( b[ 0 ] );  // fails, since b[] is a pointer
  }

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