Create and test a user-defined function named ufnFullName that combines the values of the two parameters named FirstName and LastName into a concatenated name field FullName, which is formatted as FirstName LastName (including a space between FirstName and LastName)

public static String ufnFullName (String Fname, String Lname) {

String FullName = Fname+" "+Lname;

return FullName;

}

Explanation:

Using Java programming language, the function is created to accept two String parameters (Fname and Lname)

These are concatenated into a new String FullName and returned by the function

See below a complete code that prompts users to enter value for first and last names then calls this method to display the full name

import java. util. Scanner;

public class FullName {

public static void main (String[] args) {

System. out. println ("Enter First Name");

Scanner in = new Scanner (System. in);

String Fname = in. next ();

System. out. println ("Enter Last Name");

String Lname = in. next ();

System. out. println ("Your Full Name is "+ufnFullName (Fname, Lname));

}

public static String ufnFullName (String Fname, String Lname) {

String FullName = Fname+" "+Lname;

return FullName;

}

}