Array Rotation in Java

array rotation

Description:

Before Rotation
1 2 3 
4 5 6 
7 8 9 
after rotation
7 4 1 
8 5 2 
9 6 3 






/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
	  Scanner sc=new Scanner(System.in);
	  int s=sc.nextInt();
	  int [][] arr=new int[s][s];
	  for(int i=0;i<s;i++){
	  	for(int j=0;j<s;j++){
	  		arr[i][j]=sc.nextInt();
	  	}
	  }
	  
	  System.out.println("Before Rotation");
	  for(int i=0;i<s;i++){
	  	for(int j=0;j<s;j++){
	  		System.out.print(arr[i][j]+" ");
	  	}
	  	System.out.println("");
	  }
	  
	  System.out.println("after rotation");
	  for(int i=0;i<s;i++){
	  	for(int j=s-1;j>=0;j--){
	  		System.out.print(arr[j][i]+" ");
	  	}
	  	System.out.println("");
	  }
	  
	}
}