What are lambda expressions in Java?

Lambda expressions in Java are a powerful feature introduced in Java 8 that allows you to define and use anonymous functions. They provide a concise way to implement functional interfaces, which have only one abstract method. Lambda expressions help in writing more readable and maintainable code by reducing boilerplate code.

Syntax and Usage

The syntax for a lambda expression consists of parameters, an arrow (->), and a body. For example, (parameters) -> expression or (parameters) -> { statements }. Lambda expressions are used to implement functional interfaces without the need to create a separate class to provide the implementation.

Benefits

Using lambda expressions in Java brings several benefits, including:

• Conciseness: Lambda expressions reduce the amount of code required to implement a functional interface.
• Readability: They make the code more readable and expressive by focusing on the logic rather than the syntax.
• Ease of use: Lambda expressions simplify the implementation of functional interfaces and enable easier use of functional programming concepts in Java.

Overall, lambda expressions in Java enhance the flexibility and productivity of Java developers by providing a more streamlined approach to working with functional interfaces.