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  1. Java Interface - W3Schools

    Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.

  2. Java Interface - GeeksforGeeks

    Oct 10, 2025 · An Interface in Java is an abstract type that defines a set of methods a class must implement. An interface acts as a contract that specifies what a class should do, but not how it …

  3. Java Interface (With Examples) - Programiz

    An interface is a fully abstract class that helps in Java abstraction. In this tutorial, we will learn about interfaces in Java with the help of examples.

  4. Java Interfaces - Baeldung

    Jul 23, 2025 · Explore the concept of Java interfaces and learn how Java uses them to implement polymorphism and multiple inheritance.

  5. Java Interface Complete Guide: Definition, Examples & Best …

    Oct 19, 2025 · What is a Java Interface? An interface in Java is a reference type, similar to a class, that serves as a blueprint for classes. It defines a contract that specifies what a class …

  6. Java - Interfaces - Online Tutorials Library

    Java interface is a collection of abstract methods. The interface is used to achieve abstraction in which you can define methods without their implementations (without having the body of the …

  7. The Complete Java Interface Guide – Real Examples & Smart …

    Jul 13, 2025 · Learn Java Interface with real-world examples, Java 8 features, inheritance, and interview Q&A. Explained in a clear, student-friendly way.

  8. Interface in Java with Example - Guru99

    Nov 8, 2024 · In this tutorial, learn what is an Interface and how to implement Interface in Java with example program. Also know the difference between Class and Interface.

  9. Java Interface Tutorial: Examples, Default & Static Methods

    Sep 9, 2025 · In Java, an interface is a blueprint for a class. It is a reference type, similar to a class, and it can contain abstract methods, default methods, static methods, and constants. …

  10. Java Interface Example: A Comprehensive Guide - javaspring.net

    Jun 12, 2025 · In this blog, we will explore in - depth what interfaces are, how to use them, common practices, and best practices with clear code examples. An interface in Java is a …