Family Search Using Wildcards
What are wildcards ? A symbol that replaces or represents one or more letters. The asterisk (*) replaces one or more letters and the question mark (?) replaces a single letter. The Java Tutorials describe: “In generic code, the question mark ( ? ), called the wildcard , represents an unknown type. The wildcard can be used in a variety of situations: as the type of a parameter, field, or local variable; sometimes as a return type (though it is better programming practice to be more specific). The wildcard is never used as a type argument for a generic method invocation, a generic class instance creation, or a supertype.”(1) Why do we use them in genealogy? ...