This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
What is true about has-a and is-a relationships? (Choose two) A) Instance variables can be used when creating a has-a relationship.
B) Inheritance represents an is-a relationship.
C) Inheritance represents a has-a relationship.
D) Instances must be used when creating a has-a relationship.
Answers: A, B
So,Instances are not required for Has -a relationship