Rotate NxN array

#1

my code is working on other ide but not here.

import java.util.*;
public class Main {
public static void main(String args[]) {

	Scanner sc=new Scanner(System.in);
	int m=sc.nextInt();
	int n=sc.nextInt();
	int[][] arr=new int[m][n];
	int i,j;
	for(i=0;i<m;i++)
	{
		for(j=0;j<n;j++)
		{
			arr[i][j]=sc.nextInt();

		}
	}
	for(j=n-1;j>=0;j--)
	{
		for(i=0;i<m;i++)
		{
			System.out.print(arr[i][j]+" ");
		}
		System.out.println();
	}
}

}

#2

@aaayushi534_2b8dbe33159237a1 You have been told that array will be of size nn so you only need to take n input not m also. So take n input and take further nn inputs for array and change m to n everywhere and remove line int m=sc.nextInt();
Corrected code looks like this :
(Also remember you are getting write answer but you not only need to print the array you have to rotate the array in place.)

import java.util.*;
public class Main {
public static void main(String args[]) {

	Scanner sc=new Scanner(System.in);
	int n=sc.nextInt();
	int[][] arr=new int[n][n];
	int i,j;
	for(i=0;i<n;i++)
	{
		for(j=0;j<n;j++)
		{
			arr[i][j]=sc.nextInt();

		}
	}
	for(j=n-1;j>=0;j--)
	{
		for(i=0;i<n;i++)
		{
			System.out.print(arr[i][j]+" ");
		}
		System.out.println();
	}
}
}
#3

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