# Java8FunctionalProgramming

**Repository Path**: sky_kia/Java8FunctionalProgramming

## Basic Information

- **Project Name**: Java8FunctionalProgramming
- **Description**: Java8函数式编程学习心得
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2021-03-25
- **Last Updated**: 2021-03-26

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README




#<<Java 8 函数式编程>>

@author : richard warburton 
@modifier : sky_wu [吴世凯]



#### 为什么要改编人家的代码? 

 - 外国人的思维和背景和中国不一样; so, 进行本地化是很必要的; 
 
 - 纸上得来终觉浅, 绝知此事要躬行; talk is cheap , show me the code ; 
 
 
# 代码约定

由于 lambda 表达式 比较隐晦, 对 接口了解不深可能需要解释一番; 

隐晦的方法我会在 地下 重新命名一个 原方法名_a 的 分析方法; 






# 书上重要内容 


Java中重要的函数接口

```text

接口                      参数                 返回类型                示例

Predicate<T>             T                    boolean              这张唱片已经发行了吗?
      
Consumer<T>              T                    void                 输出一个值
      
Function<T,R>            T                    R                   获得Artist对象的名字
      
Supplier<T>             None                  T                    工厂方法
   
UnaryOperator<T>         T                    T                   逻辑非 （!）
   
BinaryOperator<T>       (T, T)                T                   求两个数的乘积 （*）

  ``` 




#### 思考

使用函数式接口 , 其实就是给函数 '赋值'; 只不过我们赋予 函数的值 是具体的操作;  






java-8-lambdas-exercises
========================

This git repository contains support material for the [Java 8 Lambdas](https://www.oreilly.com/library/view/java-8-lambdas/9781449370831/) book.

Project Structure
-----------------

The overall code layout is:

* Code is in `src/main/java`
* Tests are in `src/test/java`

Within these directories things are organised by package:

* Exercises which involve code in `com.insightfullogic.java8.exercises`
* Answers are in `com.insightfullogic.java8.answers` Coding questions are all in the form of failing tests, and the package-info.java
contains the correct answer to questions which don't involve writing code, such as yes/no questions. For example here are the chapter 2 answers:
https://github.com/RichardWarburton/java-8-lambdas-exercises/blob/master/src/main/java/com/insightfullogic/java8/answers/chapter2/package-info.java
* Code Examples/Listings are in `com.insightfullogic.java8.examples`

The sub-packages then correspond to the chapter number, so the examples for chapter 4 are in
 `com.insightfullogic.java8.examples.chapter4`.

Reporting Issues
----------------

If you find any issues with the exercises or examples then please submit them via the
[O'Reilly Errata Page](http://www.oreilly.com/catalog/errata.csp?isbn=0636920030713).