
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Question
- Read a UML diagram to determine the new methods and or instance variables.
- Define instance variables, accessors, and mutators.
- Define a constructor to initialize those variables.
- Define constructors for your subclasses and call the superclass constructor.
- Override superclass methods, by combining and extending their behavior.
- Override the toString method in a subclass.
There is no printing and you will not need Scanners, or do any input.
Inheritance
Write the Bicyle class which extends Vehicle. The UML diagram is shown below. Follow it exactly.
- The Bicycle constructor call the superclass constructor to initialize owner and wheels
- getGearRatio() returns the product of gears and wheels. (Stupid, I know.)
- Override the toString() method and return the information in this form, all on one line:
Bicycle(model="Trek T700", gears=21) extends Vehicle(owner="V. Nibali", wheels=2)


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