Group Application

package groupapplication;
import java.util.Scanner;
public class GroupApplication {

    public static void main(String[] args) {
    Scanner input = new Scanner(System.in);
    String lastInitial, last,initialGrouping,first;
    int numGroup;
    System.out.print("Enter your first name:");
    first = input.nextLine();
    System.out.print("Enter your last name:");
    last = input.nextLine();
    input.close();
    lastInitial =last.toLowerCase();
    lastInitial = lastInitial.substring(0,1);
    if (lastInitial.compareTo("j")<0){
        numGroup = 1;
        initialGrouping = "(A to I).";

    } else if(lastInitial.compareTo("s")<0){
        numGroup = 2;
        initialGrouping = " (J to R).";

    } else {
        numGroup = 3;
        initialGrouping = " (S to Z).";
    }
    System.out.print(first+" is assigned to group "+numGroup+initialGrouping);
    } }