public static void main(String[] args) {
        
      Scanner scanner = new Scanner(System.in);
      
      System.out.println("Enter a character: ");
      char input = scanner.next().charAt(0);
      
      if(input >= 'A' && input <='Z')
      {
          System.out.println(input + " is an Upper Case character.");
      }
      else if ( input >= 'a' && input <= 'z')
      {
          System.out.println(input + " is a Lower Case character.");
      }
      else if ( input >= '0' && input <= '9')
      {
          System.out.println(input + " is a Digit character. ");
      }
      else
      {
          System.out.println(input + " is a valid. is not Upper Case, Lower Case and Digit character.");
      }
    }
}