Complete the initials method in the class below. For example, the call initials("Harry", "Joseph", "Hacker") should return the string "HJH".

Complete the following file:

public class Names { /** Gets the initials of a name. @param first the first name of this name @param middle the middle name of this name @param last the last name of this name @return a string consisting of the first character of the first, middle, and last name */ public String initials(String first, String middle, String last) { ... } }