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Alright 🚀 — here’s your  Java  .map()  &  .flatMap()  Cheat Sheet so you can instantly decide which one to use in real-world coding. Java  .map() ...

Perfect 👍 — here’s a  visual diagram  showing how  .map()  and  .flatMap()  work in Java Streams. Visualizing .map() vs .flatMap()1️⃣ .map()&nbs...

Feature / Use Case ↓ .map() ↓ .flatMap() Purpose ↓ Transforms each element into  exactly one  new element ↓ Transforms each element into  zero, one, or many ...

Java’s  Function<T, R>  interface with  practical use cases . What is  Function<T, R> ? Part of  java.util.function  (Java 8+) Represents ...

-> Operator in Java The -> operator in Java is used to define lambda expressions It separates the parameters (on the left) from the body (on the right) of the lambda expression. Lambda e...