Thread: any help is much appreciated

so far for my program i have

import java.util.*;
 
public class CalculateChange
{
     public static void main(String[] args)
     {
          String s1, s2;
          Scanner keyboard = new Scanner(System.in);
 
          System.out.print("Enter your name: ");
          s1 = keyboard.nextLine();
 
          System.out.print("Enter current date: "); // in format of mm/dd/yyyy
          s2 = keyboard.nextLine();
 
          String mutation1, mutation2, mutation3;
          mutation1 = s1;
          mutation2 = mutation1.toUpperCase();
          mutation3 = mutation2.substring(0, 1);
 
          System.out.println("===== Ref. # " + mutation3);
     }
}

i am stuck from here... for the last line it is to print in the format
of ===== Ref. #JSMITH091003 =====
Where the J is the first letter of the name entered for s1 and SMITH is the last
name entered for s1 and then 091003 for the date in format of yy/mm/dd
Note that JSMITH is not what hte user entered just an example of the output and i cant use the Next( ) method

I'm assuming here that the the string contains only the first and last name, and that they are separated by a single space:

public static String getNameString(String fullName)
{
     // find the last space
     for (int i = fullName.length() - 1; i>=0; i--)
     {
          if (fullName.charAt(i) == ' ')
          {
               return fullName.charAt(0) + fullName.substring(i+1,fullName.length());
          }
     }
     throw new RuntimeException("Error! Could not find a space");
}