Interface in Java OOP
Understand the Problem
The question is asking for information about interfaces in Java Object-Oriented Programming (OOP). This includes understanding how interfaces work, their purpose, and how they are implemented in Java.
Answer
A Java interface specifies methods that implementing classes must define, allowing abstraction and multiple inheritance.
An interface in Java is an abstract type used to specify a contract of methods that implementing classes must provide. It allows multiple inheritance and abstraction, where a class can implement multiple interfaces, thus designing the class to interact with other components in a defined way.
Answer for screen readers
An interface in Java is an abstract type used to specify a contract of methods that implementing classes must provide. It allows multiple inheritance and abstraction, where a class can implement multiple interfaces, thus designing the class to interact with other components in a defined way.
More Information
Java interfaces aid in achieving abstraction by allowing classes to expose certain behavior without revealing implementation details. They are pivotal in scenarios requiring multiple inheritance and polymorphism.
Tips
A common mistake is confusing interfaces with classes. An interface cannot contain constructors or instance fields, only static final constants and abstract methods.
Sources
- Java Interface - W3Schools - w3schools.com
- Java Interface - GeeksforGeeks - geeksforgeeks.org
- Java Interface (With Examples) - Programiz - programiz.com
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