How do lambda expressions compare in different programming languages?

Can you explain how lambda expressions differ between Python and Java?

Sure! In Python, lambda expressions are defined using the lambda keyword and can take any number of arguments but only one expression. In Java, lambda expressions are more structured and are used primarily with functional interfaces, introduced in Java 8.

What are some practical uses of lambda expressions in these languages?

In Python, they are often used for short functions in functions like map(), filter(), and sorted(). In Java, they are commonly used in streams for operations like filtering and mapping collections.

Are there any performance differences between using lambda expressions in Python and Java?

Yes, generally, Java's lambda expressions can be more performant due to static typing and optimizations in the JVM, while Python's dynamic nature may introduce some overhead.

Can you give me an example of a lambda expression in both languages?

Absolutely! In Python: add = lambda x, y: x + y. In Java: BiFunction<Integer, Integer, Integer> add = (x, y) -> x + y;.