Want to know the mistakes in the code

#1


this is the code for checking if the array is sorted or not. am not able to input values of N and array by scanner list.
can you please point out the mistakes?

#2

Replace 5 with N when calling sorted array

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

	Scanner s = new Scanner(System.in);
		int N= s.nextInt();
		int[] a = new int[N];
		for(int i=0; i<N; i++)
		{
			a[i]=s.nextInt();

		}

	//int[] a={9,3,3,4,5};
	System.out.println(isSorted(N,a));

/*int N=Integer.parseInt(args[0]);
  int[] a= new int[N];
  for(int i=1; i<args.length-1; i++)
    a[i-1]=Integer.parseInt(args[i]);
    System.out.println(isSorted(N,a));
*/
}

	public static boolean isSorted(int n, int[] ar)
	{
		//ArrayList<Integer> ar= new ArrayList();
		//ar.add(" ");

		n=n-1;
		if(n<=0)
		return true;
		else{
		if(ar[n]<ar[n-1]){
		return false;
		}
		else
		{
			boolean A= isSorted(n-1, ar);
			return A;
		}
		}
	}

}