Share Remind students of the relationship between an interface and its implementation to avoid confusion. with FacebookShare Remind students of the relationship between an interface and its implementation to avoid confusion. with Twitter An interface is only the set of methods that a class must implement. A class that implements an interface must implement everything in that interface. More about this tip Tags AP A Programming Concepts External Source Tips from Deborah Power Carter The College Board’s AP Computer Science Teacher’s Guide. Other Tips By Other Tips By College Board's AP Computer Science Teacher’s Guide