What is lazy evaluation in Java 8 Stream API?

What is lazy evaluation in Java 8 Stream API?

Lazy evaluation in Java 8 Stream API means that the computation of elements is deferred until they are actually needed.

Can you give me an example of how lazy evaluation works?

Sure! When you create a stream and apply intermediate operations like filter or map, these operations are not executed until a terminal operation like collect is called.

What are the benefits of using lazy evaluation?

The benefits include improved performance, as it avoids unnecessary computations, and the ability to work with potentially infinite data sources.

Are there any downsides to lazy evaluation?

Yes, one downside is that it can lead to increased memory usage if not managed properly, as intermediate results may be held in memory.