CMSC 22 Second Long Exam Reviewer

Java Interface

It is a reference type that can contain only constants, method signatures, default methods, static methods, and nested types.

Java Interface

It is used to achieve abstraction and multiple inheritance in Java, defining a contract that implementing classes must fulfill.

Interface

This keyword is used to declare an interface in java.

Syntax test

public interface Expandable{ // use keyword interface instead of class

int EXPANSION_COST = 300; // public final static attribute

boolean expand(); // public abstract method/s

}