Answered: If a class C1 has an instance variable…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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The following is a true statement about classes in object-oriented program design:

"If a class C1 has an instance variable whose type is another class, C2. This means C1 has-a C2."

Please explain or provide an example (preferred language is Java) of why this is right. Does it mean something like:
public class BankArray{private BankAccount; } then BankArray has-a BankAccount?

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