What is the primary purpose of Java Lambda Expressions?

Java MCQ: What is the primary purpose of Java Lambda Expressions?

Answer:

Explanation:

Java Lambda Expressions were introduced in Java 8 to enable functional programming by allowing behavior to be passed as an argument. Lambda expressions provide a clear and concise way to represent a single method interface (functional interface) using an expression.

Lambdas are typically used to pass instances of functional interfaces, making code more readable and reducing boilerplate. They are particularly useful in scenarios such as filtering collections, event handling, and defining inline implementations of interfaces with a single abstract method.

For example, consider this lambda expression that defines a simple operation:

(int a, int b) -> a + b

This lambda expression takes two integers as input and returns their sum. It can be passed as an argument to methods that require behavior to be defined dynamically, such as sorting a list, mapping over a collection, or performing a specific action on each element of a collection.

Lambdas are a key feature in Java 8 that bring Java closer to functional programming paradigms, making code more expressive and easier to understand.

Reference links:

https://www.rameshfadatare.com/learn-java-programming/
https://www.javaguides.net/p/java-tutorial-learn-java-programming.html