What is a Functional Interface? | Lambda Expression in Java | Java Lambda Expressions Explained

In this Java programming tutorial, we explore the concept of functional interfaces and their role in lambda expressions. A functional interface in Java is an interface with exactly one abstract method, making it suitable for lambda expressions and functional programming techniques.

**Key Points Covered:**
- Definition and characteristics of a functional interface in Java.
- Explanation of why functional interfaces are important for lambda expressions.
- Practical examples demonstrating how to define and use functional interfaces.
- Comparison with regular interfaces and how functional interfaces enable concise and expressive code with lambda expressions.

By the end of this video, you'll have a clear understanding of what a functional interface is, how it facilitates the use of lambda expressions in Java, and how you can effectively use them in your programming projects.

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What is a Functional interface? | Lambda expression in Java | Java Lambda expressions

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