What are 'Arrays' ?
An Array is known as the collection of Similar data types.
An Array is actually a data structure which consists of a group of elements of same type.
Arrays store same type of elements in consecutive memory location one after another.
Examples :-Â
Suppose there is an array which consists of 5 Elements of integer type let's say the elements are 4,6,2,7,9.
So, if in the above array the address of the memory location of the element 4 is 'a123480' then the address of the memory location of the next element 6 will be 'a123481' and that of the next element i.e. 2 will be 'a123482' and further elements will be followed.
array element           address
4Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 'a123480'
6Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 'a123481'
2Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 'a123482'
7Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 'a123483'
9Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 'a123484'
Now let's dig into how to declare and create an array in C++ programming language:Â
Syntax:
Now Lets see an example of Array in C++:
#include<iostream>
using namespace std;
int main()
{
//Declaring Variable to store length of array
int n;
//Taking input from user for length of array
cout<<"Enter the length of array\n";
cin>>n;
//Declaring an array of sizen n, and type integer
int arr[n] ;
//Taking input of elements of array
cout<<"Enter the elemnets of the Array\n";
for (int i =0 ; i <n ; i++)
{
cin>>arr[i] ;
}
//Printing the elements of the array.
cout<<"\nThe array elements are: \n";
for(int i=0 ; i <n ; i++)
{
cout<<arr[i]<<'\n' ;
}
return 0 ;
}
Output For C++
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