String object has a
public boolean matches(String RE) returns true if the regular expression RE matches the string, returns false otherwise. throws a
PatternSyntaxExceptionif the syntax of RE is invalid.
For now, ignore the exceptions that might be thrown. (They are unchecked exceptions, so you don't need to do anything special in your code.) (Of course, your program will halt when one is thrown.)
Are both the string that owns the method and the regular expression