refactoring

来源： https://stackoverflow.com/questions/484489/is-there-a-way-to-programmatically-extract-an-interface

问题 I am trying to refactor some application to use Spring DI instead of plain java and stuck with the issue. Basically i have a class with several constructors: public MyClass() { this(new A()); } public MyClass(A a) { this(a, new B())); } public MyClass(String string) { this(new A(string)); } public MyClass(A a, B b) { this.a = a; this.c = a.getC(); this.b = b; this.d = b.getD(); } public MyClass(A a, B b, D d) { this.a = a; this.c = a.getC(); this.b = b; this.d = d; } These constructors are

问题 I am trying to refactor some application to use Spring DI instead of plain java and stuck with the issue. Basically i have a class with several constructors: public MyClass() { this(new A()); } public MyClass(A a) { this(a, new B())); } public MyClass(String string) { this(new A(string)); } public MyClass(A a, B b) { this.a = a; this.c = a.getC(); this.b = b; this.d = b.getD(); } public MyClass(A a, B b, D d) { this.a = a; this.c = a.getC(); this.b = b; this.d = d; } These constructors are

问题 This question already has answers here : Convert continuous numeric values to discrete categories defined by intervals (2 answers) Closed 15 days ago . everybody. I hope that you would help me to solve my query. For a vector representing the price ($) of apples say, apple <- c(23, 26, 54, 34, 34, 34, 98, 23, 4, 34, 098, 45, 93, 20, 39, 83, 78, 34, 09, 8, 56, 98, 99, 62, 29) I can assign a factor vector that represents whether it is "cheap" if apples cost less than $50 and "expensive" if apple

问题 This question already has answers here : Convert continuous numeric values to discrete categories defined by intervals (2 answers) Closed 15 days ago . everybody. I hope that you would help me to solve my query. For a vector representing the price ($) of apples say, apple <- c(23, 26, 54, 34, 34, 34, 98, 23, 4, 34, 098, 45, 93, 20, 39, 83, 78, 34, 09, 8, 56, 98, 99, 62, 29) I can assign a factor vector that represents whether it is "cheap" if apples cost less than $50 and "expensive" if apple

问题 When writing C++ code, I often start by writing full 'implementation' code in my header files, then later need to refactor the implementation into a .cpp file. This is great, but I find this process laborious, but otherwise pretty easy, so I wondered about whether is there any automated way to do this? Specifically, I want to convert all class and function definitions in the .h to declarations, and have them declared in a new .cpp file. I'm using xcode, but I am open to any solutions. 回答1:

问题 When writing C++ code, I often start by writing full 'implementation' code in my header files, then later need to refactor the implementation into a .cpp file. This is great, but I find this process laborious, but otherwise pretty easy, so I wondered about whether is there any automated way to do this? Specifically, I want to convert all class and function definitions in the .h to declarations, and have them declared in a new .cpp file. I'm using xcode, but I am open to any solutions. 回答1:

问题 I currently have difficulties to structure my NodeJS project. I followed several YouTube series, seeing people using different techniques to structure their code. Which structure would you suggest me in my case? What's best practice? I've my app.js which contains connection establishment to MongoDB, initializing express, bodyParser, pug as view engine and finally starting the server. My router.js contains all routes and unfortunately some middleware code, which I want to move into their own

问题 I have some third party library Foo with class FooBar . I think that class FooBar is badly designed. I want to write my own MyBar as adapter pattern. Can I mark the original FooBar as @Deprecated without modifying its code? 回答1: @deprecated should be added to the source to flag the class/method as deprecated. So you cannot deprecate someone else's code. However if you have a better alternative that you prefer to use in your project as a standard , then you can impose this standard in other

问题 Jupyter (iPython) notebook is deservedly known as a good tool for prototyping the code and doing all kinds of machine learning stuff interactively. But when I use it, I inevitably run into the following: the notebook quickly becomes too complex and messy to be maintained and improved further as notebook, and I have to make python scripts out of it; when it comes to production code (e.g. one that needs to be re-run every day), the notebook again is not the best format. Suppose I've developed a