Program to copy all the elements of one array into another array

Q. Program to copy all the elements of one array into another array.

Explanation

In this program, we need to copy all the elements of one array into another. This can be accomplished by looping through the first array and store the elements of the first array into the second array at the corresponding position.

Program to copy all the elements of one array into another array

Algorithm

Declare and initialize an array.
Declare another array of the same size as of first one
Loop through the first array from 0 to length of the array and copy an element from the first array to the second array that is arr1[i] = arr2[i].

Solution

Python

#Initialize array 
arr1 = [1, 2, 3, 4, 5]; 
 
#Create another array arr2 with size of arr1
arr2 = [None] * len(arr1);
 
#Copying all elements of one array into another
for i in range(0, len(arr1)):
    arr2[i] = arr1[i]; 
 
#Displaying elements of array arr1 
print("Elements of original array: ");
for i in range(0, len(arr1)):
   print(arr1[i]),
 
print();
 
#Displaying elements of array arr2 
print("Elements of new array: ");
for i in range(0, len(arr2)):
   print(arr2[i]),

Output:

Elements of original array: 
1 2 3 4 5 
Elements of new array: 
1 2 3 4 5

C

#include <stdio.h>
 
int main()
{
    //Initialize array 
    int arr1[] = {1, 2, 3, 4, 5};
    
    //Calculate length of array arr1
    int length = sizeof(arr1)/sizeof(arr1[0]);
    
    //Create another array arr2 with the size of arr1.

    int arr2[length];
    
    //Copying all elements of one array into another
    for (int i = 0; i < length; i++) { 
        arr2[i] = arr1[i]; 
    }  
    
    //Displaying elements of array arr1 
    printf("Elements of original array: \n");
    for (int i = 0; i < length; i++) { 
        printf("%d ", arr1[i]);
    }
    
    printf("\n");
    
    //Displaying elements of array arr2 
    printf("Elements of new array: \n");
    for (int i = 0; i < length; i++) { 
        printf("%d ", arr2[i]);
    }
    return 0;
}

Output:

Elements of original array: 
1 2 3 4 5 
Elements of new array: 
1 2 3 4 5

JAVA

public class CopyArray {
    public static void main(String[] args) {    
        
        //Initialize array 
        int [] arr1 = new int [] {1, 2, 3, 4, 5}; 
        
        //Create another array arr2 with size of arr1
        int arr2[] = new int[arr1.length];
        
        //Copying all elements of one array into another
        for (int i = 0; i < arr1.length; i++) { 
            arr2[i] = arr1[i]; 
        }  
        
        //Displaying elements of array arr1 
        System.out.println("Elements of original array: ");
        for (int i = 0; i < arr1.length; i++) { 
           System.out.print(arr1[i] + " ");
        } 
        
        System.out.println();
        
        //Displaying elements of array arr2 
        System.out.println("Elements of new array: ");
        for (int i = 0; i < arr2.length; i++) { 
           System.out.print(arr2[i] + " ");
        } 
    }
}

Output:

Elements of original array: 
1 2 3 4 5 
Elements of new array: 
1 2 3 4 5

C#

using System;
                    
public class CopyArray
{
    public static void Main()
    {
        //Initialize array 
        int [] arr1 = new int [] {1, 2, 3, 4, 5}; 
        
        //Create another array arr2 with size of arr1
        int [] arr2 = new int[arr1.Length];
        
        //Copying all elements of one array into another
        for (int i = 0; i < arr1.Length; i++) { 
            arr2[i] = arr1[i]; 
        }  
        
        //Displaying elements of array arr1 
        Console.WriteLine("Elements of original array: ");
        for (int i = 0; i < arr1.Length; i++) { 
           Console.Write(arr1[i] + " ");
        } 
        
        Console.WriteLine();
        
        //Displaying elements of array arr2 
        Console.WriteLine("Elements of new array: ");
        for (int i = 0; i < arr2.Length; i++) { 
           Console.Write(arr2[i] + " ");
        } 
    }
}

Output:

Elements of original array: 
1 2 3 4 5 
Elements of new array: 
1 2 3 4 5

PHP

<!DOCTYPE html>
<html>
<body>
<?php
//Initialize array 
$arr1 = array(1, 2, 3, 4, 5); 
 
//Create another array arr2
$arr2 = array();    
    
//Copying all elements of one array into another
for ($i = 0; $i < count($arr1); $i++) { 
    $arr2[$i] = $arr1[$i]; 
}  
 
//Displaying elements of array arr1 
print("Elements of original array: <br>");
for ($i = 0; $i < count($arr1); $i++) { 
   print($arr1[$i] . " ");
} 
 
print("<br>");
 
//Displaying elements of array arr2 
print("Elements of new array: <br>");
for ($i = 0; $i < count($arr2); $i++) { 
   print($arr2[$i] . " ");
} 
?>
</body>
</html>

Output:

Elements of original array: 
1 2 3 4 5 
Elements of new array: 
1 2 3 4 5

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