IT Xianyu
Dec 23, 2020 · Fundamentals
Why Java Needs Lambda: Solving the Vertical Problem with Functional Interfaces
This article explains the need for Java lambda expressions by illustrating the "Vertical Problem" of repetitive, tightly‑coupled code for different contact methods and demonstrates a progression of refactorings that culminate in a concise solution using functional interfaces and predicates.
Functional ProgrammingLambdaPredicate
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