TO FIND WHETHER THE ENTERED LETTER IS IN UPPERCASE OR LOWERCASE

WRITE A PROGRAM THAT INPUTS A CHARACTER AND PRINTS IF THE TYPED CHARACTER IS IN UPPERCASE OR LOWERCASE.

import java .util.*; //or import java . util.Scanner;
class findcase
{
public static void main (String[]args)
{
Scanner sc = new Scanner(System.in);
System.out.println("ENTER A LETTER [ either upper case or lower case ] : ");
char ch = sc.next().charAt(0);
if(ch>='A'&&ch<='Z') //to check if the letter is uppercase
System.out.println("THE ENTERED LETTER : " + ch + " IS AN UPPER CASE LETTER");
else
System.out.println("THE ENTERED LETTER : " + ch + " IS A LOWER CASE LETTER");
}
}