Maximum Non-Boundary Element

import java.util.*;
public class MaxNonBoundaryElement
{
    public static void main(String args[])
    {
        int row=0,col=0,max=0;
        Scanner sc=new Scanner(System.in);
        System.out.print("Enter no.of rows: ");
        row=sc.nextInt();
        System.out.print("Enter no.of columns: ");
        col=sc.nextInt();
        int ar[][]=new int[row][col];
        System.out.println("Enter matrix elements:-");
        for(int i=0;i<row;i++)
        {
            for(int j=0;j<col;j++)
            {
                ar[i][j]=sc.nextInt();
            }
        }
        if(row<=2&&col<=2)
        {
            System.out.println("Non-boundary elements does not exists");
            System.exit(1);
        }
        max=ar[1][1];
        for(int i=1;i<row-1;i++)
        {
            for(int j=1;j<col-1;j++)
            {
                if(max<ar[i][j])
                {
                    max=ar[i][j];
                }
            }
        }
        System.out.println("Maximum non-boundary elements is "+max);
    }
}