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 :- 
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
4                                        'a123480'
6                                        'a123481'
2                                        'a123482'
7                                        'a123483'
9                                        'a123484'


Now let's dig into how to declare and create an array in different programming languages: 

C
Arrays


C++
Arrays

JAVA
Arrays
For Python we don't have as such any specific syntax for declaration of array in python you just use the list for the array purpose and for multi-dimensional arrays you indeed need to import a module named 'numpy'





Now Lets see some examples of Arrays in C, C++, Java and Python:

C


#include <stdio.h>
int main()
{
    int n;
    printf("Enter the size of Array\n");
    scanf("%d", &n);

    //declaring array
    int arr[n];

    // loop to take array elements from the user
    printf("Enter the Elements of Array\n");
    for (int i = 0; i < n; i++)
    {
        scanf("%d", &arr[i]);
    }

    // printing the array elements
    printf("\nArray elements you inputed are :- \n");
    for (int i = 0; i < n; i++)
    {
        printf("%d", arr[i]);
        printf("\n");
    }
    return 0;
}

    


Output For C

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++

Python


# declaring an empty list that is to be used as an array
arr = []

# taking the length of the array from the user
n = int(input("Enter the no of elements required in the array/list\n"))

# using for loop for taking the array elements
print("Enter the elements for array/list")

for i in range(n):
    a = input("")
    arr.append(a)

# finally printing the array
print("The array elements are\n", arr)

    


Output For Python

JAVA


 package com.company;
 import java.util.*;

 public class Main {

    public static void main(String[] args)
    {
        Scanner sc = new Scanner(System.in);
	    System.out.println("Enter the Size of Array");
	    int n = sc.nextInt();
		
        // declaring array 
	    int[] arr = new int[n];
        
        // for loop to take the array elements from the user
        System.out.println("Enter the elements of Array");
	    for (int i=0; i<n;i++)
        {
            arr[i] = sc.nextInt();
        }
		
        // printing the array elements
	    System.out.println("The Inputed values are :-");
	    for (int i=0;i<n;i++)
        {
            System.out.println(arr[i]);
        }

    }
 }
Output For Java

//ENJOY CODING\\

Tags

Post a Comment

FOR ANY DOUBTS AND ERRORS FEEL FREE TO ASK. YOUR DOUBTS WILL BE ADDRESSED ASAP

Post a Comment

FOR ANY DOUBTS AND ERRORS FEEL FREE TO ASK. YOUR DOUBTS WILL BE ADDRESSED ASAP

Previous Post Next Post