code-duplication

问题 I'm totally fresh about threading and GUIs, therefore I couldn't figure out exactly where to call this EventQueue.invokeLater() method. Am I supposed to call it in every event listeners and something else? What are those "things" to call this method? If so, is there any alternative way to call-once-apply-everywhere method so that It won't take bunch of lines to tuck them to the Event dispatch thread? Thank you. 回答1: therefore I couldn't figure out exactly where to call this EventQueue

问题 I'm totally fresh about threading and GUIs, therefore I couldn't figure out exactly where to call this EventQueue.invokeLater() method. Am I supposed to call it in every event listeners and something else? What are those "things" to call this method? If so, is there any alternative way to call-once-apply-everywhere method so that It won't take bunch of lines to tuck them to the Event dispatch thread? Thank you. 回答1: therefore I couldn't figure out exactly where to call this EventQueue

来源： https://stackoverflow.com/questions/22628943/how-do-i-force-a-specific-instantiation-of-a-templated-function-without-repeatin

来源： https://stackoverflow.com/questions/22628943/how-do-i-force-a-specific-instantiation-of-a-templated-function-without-repeatin

问题 So I'm working on an implementation of a Grid class for a small, personal utilities library. After much work, I'm tidying up the Grid class and adding some functionality. One of the key pieces of functionality that I wish to use with my Grid class is to be able to take a single, 2D array of any given type as an argument to the constructor. This worked fine until I realized that I can't compile any code that attempts to pass in any array of primitives to the constructor. Since autoboxing doesn

问题 I am currently working on a simple interpreter for a programming language and I have a data type like this: data Expr = Variable String | Number Int | Add [Expr] | Sub Expr Expr And I have many functions that do simple things like: -- Substitute a value for a variable substituteName :: String -> Int -> Expr -> Expr substituteName name newValue = go where go (Variable x) | x == name = Number newValue go (Add xs) = Add $ map go xs go (Sub x y) = Sub (go x) (go y) go other = other -- Replace

问题 I am currently working on a simple interpreter for a programming language and I have a data type like this: data Expr = Variable String | Number Int | Add [Expr] | Sub Expr Expr And I have many functions that do simple things like: -- Substitute a value for a variable substituteName :: String -> Int -> Expr -> Expr substituteName name newValue = go where go (Variable x) | x == name = Number newValue go (Add xs) = Add $ map go xs go (Sub x y) = Sub (go x) (go y) go other = other -- Replace

问题 I've been going through some Assembly Programming Videos to get a better understanding of how to manually optimize the *.s files left after compiling with gcc/g++ -S ... One of the topics covered was Refactoring Redundant Code that demonstrates how to move redundant code to its own labeled block ending with a ret and replacing it with a call. The example given in the video is 2 blocks containing: mov eax,power mul ebx mov power,eax inc count which it replaces with call CalculateNextPower and

问题 In one of my Java projects I am plagued by code repetition due to the way Java handles (not) primitives. After having to manually copy the same change to four different locations ( int , long , float , double ) again , for the third time, again and again I came really close (?) to snapping. In various forms, this issue has been brought up now and then on StackOverflow: Managing highly repetitive code and documentation in Java How to avoid repetition when working with primitive types? Passing

问题 I'll try to keep it short. I have classes with many instance variables (30+) and hence many getters/setters. The classes by themselves are simple, but because of the getters/setters the LOC just exploded (and there also was way too much code duplicity). So I removed the attributes and stored them in a map, like this public class MyTechnicalToolClassX { //...constructor private Map<String, Object> data; public Object getAttributeByKey(AttributeKey key) { // ...doStuff, check data associated