Check out example codes for "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 [] = { 16, 2, 77, 40, 12071 };

Code Example 3

// Array declaration by initializing elements 
int arr[] = { 10, 20, 30, 40 } 
  
// Compiler creates an array of size 4. 
// above is same as  "int arr[4] = {10, 20, 30, 40}"

Code Example 4

int leng = 10;
double X[leng];

Code Example 5

// datatype var_name[howmuch value you need to store] = {values, values}
int a[5] = {1, 2 3, 4, 5};

Code Example 6

int foo [5];

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