www.bbcnoun.com.ng 10/10 The ability of a class to have references to objects of other classes as members is called? Composition What return type is used when a method does not return any data when it completes its tasks? void How can you create a non-default constructor to act as a default constructor? Make the body of the constructor empty Two object-oriented programming concepts that promotes software reuse are Inheritance and ____________. Polymorphism Which members of a superclass are NOT available to its subclass? private The public methods provided by classes to allow clients (users) of a class to assign values to private instance variable is called? set What is the act of creating an object of a class called? Instantiation Which of these options is NOT a primitive data type in Java? string ___________ are special methods that are used to initialise a new object of a class. Constructors A vehicle and a car is an example of __________________. superclass and subclass respectively