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

Program to copy all the elements of one array into another array on fibonacci, factorial, prime, armstrong, swap, reverse, search, sort, stack, queue, array, linkedlist, tree, graph etc.

## 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.

### Algorithm

1. Declare and initialize an array.
2. Declare another array of the same size as of first one
3. 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].

### 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
```

Next Topic#