An array in C++ is a collection of elements of the same data type, where elements are identified by an index and stored in a contiguous manner. Arrays allow for random access to elements using an integer index and are defined using specific syntax. The document provides examples of declaring and accessing array elements.

1. ARRAY in C++
Why, When and How to use array

2. What is an Array
An array is a collection of elements with similar
data type.
– Element are identified by an index or a key.
– Store values in contiguous fashion.
EX.
4 6 3 5 8 8 9
Arr
0 1 2 3 4 5 6
index
value

3. Declaring an Array
• Syntax
dataType arrayName[size] ;
Example :

4. Defining an Array
dataType arrayName[ ] = { V, A, L, U, E, S} ;

5. Accessing Elements
• Array allows random element access with a
integer index.
• Syntax
arrayName[index] = value ;