Chapter 2. Putting the Function in Functional Programming
In the first chapter, the basic concept of functions and how they are supported by lambda expressions in Java 8 were introduced. In this chapter, we will cover lambda expressions in more depth. We will explain how they satisfy the mathematical definition of a function and how we can use them in supporting Java applications.
In this chapter, you will cover several topics, including:
- Lambda expression syntax and type inference
- High-order, pure, and first-class functions
- Referential transparency
- Closure and currying
- Common functional interfaces
Our discussions cover high-order functions, first-class functions, and pure functions. Also examined are the concepts of referential transparency, closure, ...
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