Write a method getLastFirst whose parameter is a string containing a name such as "Harry Smith" and that returns a string with the last name followed by a comma and the first name, like this: "Smith, Harry"

Complete the following file:


/** A class to process names. */ public class Names { /** Turns a name "First Last" into a name "Last, First" @param firstLast a name such as "Harry Smith", with a space separating the first and last name. @return a name such as "Smith, Harry", with the last name followed by a comma, a space, and the first name. */ public String getLastFirst(String firstLast) { . . . } }