写这个系列的初衷是SAP Chengdu office有越来越多的应届毕业生加入，这些新同事通过在大学的专业学习，具备了Java和JavaScript背景，但是进入SAP之后大家觉得ABAP没有Java和JavaScript好学。
其实任何编程语言总是有很多相通之处，这个系列就是把这三种语言的很多知识点拿来横向比较，即使只会其中一门，也能看懂这些post.

同时对于ABAP较之Java和JavaScript缺乏的一些feature和框架特性，例如闭包，函数式编程，Spring依赖注入等，这些post里面也通过应用层模拟的方式做了一些简单尝试:

全部文章list

1. Lazy Loading, Singleton and Bridge design pattern in JavaScript and in ABAP
2. Functional programming – Simulate Curry in ABAP
3. Functional Programming – Try Reduce in JavaScript and in ABAP
4. Simulate Mockito in ABAP
5. A simulation of Java Spring dependency injection annotation @Inject in ABAP
6. Singleton bypass Trap – ABAP and Java
7. Weak reference in ABAP and Java
8. Fibonacci Sequence in ES5, ES6 and ABAP
9. Java byte code and ABAP Load
10. How to write a “correct” program rejected by compiler: Exception handling in Java and in ABAP
11. An small example to learn Garbage collection in Java and in ABAP
12. String Template in ABAP, ES6, Angular and React
13. Try to access static private attribute via ABAP RTTI and Java Reflection
14. Local class in ABAP, Java and JavaScript
15. Integer in ABAP, Java and JavaScript
16. Covariance in Java and simulation in ABAP
17. Various Proxy Design Pattern implementation variants in Java, ABAP and JavaScript
18. Tag(Marker) Interface in ABAP and Java
19. Bitwise operation ( OR, AND, XOR ) on ABAP Integer
20. ABAP ICF handler and Java Servlet
21. ADBC and JDBC
22. Weak reference in ABAP and Java

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