Array

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"Array - It is a collection of variable of same data type and referred under a common name."


In C++ ,  the declaration of an array is 

int a [10] ;
                 where 
int is a Data Type, it can b float, char etc. 
a is a Name of the Array (under which it is referred)
[ index number ] is a size of array and it is always started from 0 to size-1.




Two Types Of Array

♣ Single Dimensional Array 
♣ Two Dimensional Array
♣ Multi Dimensional Array




# Single Dimensional Array

- it store its elements in linear form.
- it has continuous memory location.
- the size of array is always positive.  


Here we declarer an array with size of 5 elements. ( int a[5]; )

a[5] = {55,45,78,67,28}

a[0] = 55
a[1] = 45
a[2] = 78
a[3] = 67
a[4] = 28

Note- 5001 , 5002, .... 5005 is know as address of the array elements (store in a physical memory).




# Two Dimensional Array

- It is stored in a matrices form.
- It is declare-red as  int a[row][column];
-



# Multi Dimensional Array

- It is a array two or more array 
- Having more then 2 rows and columns.  



Ques - Write a program to read 10 elements in an array & display it on screen and calculate its sum.

Program -


Output -





By - Somesh Sah 




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