What is the purpose of peek() in Java Streams?

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Question

What is the purpose of peek() in Java Streams?

What is a Stream in Java?

• As we already discussed, Stream in Java is like a pipeline in which we perform required operations and collect them into a data structure.
• It helps us take a collection of data (like a list of names or numbers) and perform operations on it, like filtering, sorting, or collecting, without changing the original data.

What is peek() in Java Streams?

• The peek() method is a special method in Streams.
• It allows you to look at (or “peek into”) the elements of the Stream as they are moving through the pipeline.
• Think of it like putting a CCTV camera in your pipeline! You are not changing the items — you are just looking at…