question on objects

[sulakshana]

If a question asks new parkRanger().notenewoffspring(_______)
What type of answers will match the blank in above......is it subclass or superclass or how to judge a question like this..

[admin]

You can always pass a subclass object where the parameter type is a super type. You will need to go through a good book to understand the topic of polymorphism to answer such questions.