Reverse an array

 Take as input N, a number. Take N more inputs and store that in an array. Write a recursive function which reverses the array. Print the values of reversed array.

Input Format

Enter a number N and take N more inputs

Constraints

None

Output Format

Display values of the reversed array

Sample Input

4
1
2
3
4

Sample Output

 4 3 2 1

Solution :

import java.util.*;

public class ReverseArray {

public static void main(String args[])

{

 Scanner s=new Scanner(System.in);

 int length=s.nextInt();

 int arr[]=new int[length];

 for(int i=0; i<arr.length; i++)

 {

 arr[i]=s.nextInt();

 }

       

 s.close();

 reverseArray(arr,0);

 System.out.println(Arrays.toString(arr));

 }

 private static void reverseArray(int arr[],int i)

 {

 if(i>=arr.length/2)

 {

  return;

 }

  int temp;

 temp=arr[i];

 arr[i]=arr[arr.length-i-1];

 arr[arr.length-i-1]=temp;

 reverseArray(arr, i+1);

 }

   

}

4 3 2 1