Big Java, Binder Ready Version: Early Objects
6th Edition
ISBN: 9781119056447
Author: Cay S. Horstmann
Publisher: WILEY
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Chapter 9, Problem 4RE
Program Plan Intro
Inheritance:
- Inheritance is the concept of inheriting the members and properties of a base class from the derived class.
- The main advantages of inheritance are,
- Code reusability and fast implementation.
- Reduces the size of the program code.
- There are five types of inheritance:
- Single inheritance
- Multiple inheritance
- Hierarchical inheritance
- Multilevel inheritance
- Hybrid inheritance
- If a subclass inherits a base class, then the member functions and data members of the super class can be accessed by the derived class.
- But the derived class does not inherit the constructors from the base classes; each derived class should contain individual constructors.
- The main advantages of inheritance are,
Method Overriding:
- Overriding is a feature that allows a child class or subclass to specifically implement a method that already provided by one of its parent classes or super classes.
- If the method of the subclass has name, parameters and return type as same as the method in the super class, then the method in the subclass is said to override the method in the super-class.
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Chapter 9 Solutions
Big Java, Binder Ready Version: Early Objects
Ch. 9.1 - Consider classes Manager and Employee. Which...Ch. 9.1 - What are the inheritance relationships between...Ch. 9.1 - Prob. 3SCCh. 9.1 - Prob. 4SCCh. 9.1 - Prob. 5SCCh. 9.2 - Prob. 6SCCh. 9.2 - Suppose the class Employee is declared as...Ch. 9.2 - Prob. 8SCCh. 9.2 - In the Manager class, provide the method header...Ch. 9.2 - Prob. 10SC
Ch. 9.3 - What is wrong with the following implementation of...Ch. 9.3 - What is wrong with the following implementation of...Ch. 9.3 - Look again at the implementation of the addChoice...Ch. 9.3 - In the Manager class of Self Check 7, override the...Ch. 9.3 - In the Manager class of Self Check 9, override the...Ch. 9.4 - Assuming SavingsAccount is a subclass of...Ch. 9.4 - Prob. 17SCCh. 9.4 - Declare an array quiz that can hold a mixture of...Ch. 9.4 - Prob. 19SCCh. 9.4 - Prob. 20SCCh. 9.5 - Prob. 21SCCh. 9.5 - Will the following code fragment compile? Will it...Ch. 9.5 - Prob. 23SCCh. 9.5 - Prob. 24SCCh. 9.5 - Prob. 25SCCh. 9 - Prob. 1RECh. 9 - Identify the superclass and subclass in each of...Ch. 9 - Prob. 3RECh. 9 - Which methods does the ChoiceQuestion class...Ch. 9 - Which methods does the SavingsAccount class in How...Ch. 9 - Prob. 6RECh. 9 - Suppose the class Sub extends the class Sandwich....Ch. 9 - Draw an inheritance diagram that shows the...Ch. 9 - Prob. 9RECh. 9 - What inheritance relationships would you establish...Ch. 9 - How does a cast such as (BankAccount) x differ...Ch. 9 - Prob. 12RECh. 9 - Implement a subclass of BankAccount called...Ch. 9 - Implement a subclass of BankAccount called...Ch. 9 - Reimplement the CheckingAccount class from How To...Ch. 9 - Add a class NumericQuestion to the question...Ch. 9 - Prob. 5PECh. 9 - Prob. 6PECh. 9 - Add a class AnyCorrectChoiceQuestion to the...Ch. 9 - Prob. 8PECh. 9 - Prob. 10PECh. 9 - Prob. 11PECh. 9 - Prob. 12PECh. 9 - Prob. 13PECh. 9 - Prob. 14PECh. 9 - Prob. 15PECh. 9 - Prob. 16PECh. 9 - Prob. 17PECh. 9 - Prob. 1PPCh. 9 - Prob. 2PPCh. 9 - Prob. 3PPCh. 9 - Prob. 4PPCh. 9 - Prob. 5PPCh. 9 - Prob. 6PPCh. 9 - Prob. 7PPCh. 9 - Prob. 8PP
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