Java: An Introduction to Problem Solving and Programming (8th Edition)
8th Edition
ISBN: 9780134462035
Author: Walter Savitch
Publisher: PEARSON
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Chapter 8.4, Problem 23STQ
Program Plan Intro
Interface:
Interface is a reference type in Java, which contains a collection of abstract methods. It is very similar to class, but it cannot be instantiated, rather it is implemented by other classes.
An interface needs to the follow certain conditions such as:
- • One cannot instantiate an interface.
- • Interfaces do not contain any constructors.
- • All methods present in the interface are abstracts.
- • An interface does not contain any instance field.
- • An interface cannot be extended by a class.
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Chapter 8 Solutions
Java: An Introduction to Problem Solving and Programming (8th Edition)
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