methods

问题 Ordering Java methods is probably the least important code style issue ever, but I'm trying to develop a code style as similar to what most people do as possible. It's by far the most popular approach to first declare all fields and then all methods, so I'll only ask about methods. Now I'm wondering how to order Java methods. I can think of two sensible basic approaches: Order methods by visibility (i.e. first public, then protected, then private or the other way around) Order methods by

问题 This question already has answers here : Closed 8 years ago . Possible Duplicate: C#: What is the use of “ref” for Reference-type variables? Hi, Does it make sense to pass a "reference type" to a method as a parameter with 'ref' key? Or it is just nonsense as it is already a reference type but not a value type? Thanks! 回答1: It lets you change the reference variable itself , in addition to the object it's pointing to . It makes sense if you think you might make the variable point to a

问题 I have a class like below with a method that just returns a String, but I want to modify what it returns from another class, without hardcoding it myself. public class Name { public static String getName() { return "MyName"; } } Is there any way to do this? I tried BCEL but that didn't seem to change the return value. Edit: This is for a mod. I'm trying to make it completely independant from the existing code, by not modifying it. Thanks. 回答1: Are you sure you've tried BCEL? I created a fully

问题 There is a generic method, say incx . There are two versions of incx . One specialized on type a , and one specialized on type b . Type b is a subclass of a . You are given an object of type b , the derived type - but you want to call the method that is specialized on type a . You could do this easily if there wasn't already a method of the same name specialized on type b , but alas, there is such a method. So how do you call the method specialized on type a in such a situation? (defclass a (

问题 How can I get the HTML code of a page in C# ASP.NET? Example: http://google.com How I can get this HTML code by ASP.NET C#? 回答1: The WebClient class will do what you want: string address = "http://stackoverflow.com/"; using (WebClient wc = new WebClient()) { string content = wc.DownloadString(address); } As mentioned in the comments, you might prefer to use the async version of DownloadString to avoid blocking: string address = "http://stackoverflow.com/"; using (WebClient wc = new WebClient(

问题 I have three classes which I have a problem with. They are named: GameScene, StageScene, StageOne. My problem is that I want to implement initialize in StageScene, but still force StageOne to implement it, so that whenever someone uses a StageOne object (stageOne.initialize()), initialize would be run for both StageScene and StageOne. Anyone know how this could be done? public abstract class GameScene { public abstract void initialize(); } public abstract class StageScene extends GameScene {

问题 test <- data.frame(Exp = c(4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6), t = c(0, 0.33, 0.67, 1, 1.33, 1.67, 2, 4, 6, 8, 10, 0, 33, 0.67, 1, 1.33, 1.67, 2, 4, 6, 8, 10, 0, 0.33, 0.67, 1, 1.33, 1.67, 2, 4, 6, 8, 10), fold = c(1, 0.957066345654286, 1.24139015724819, 1.62889151698633, 1.72008539595879, 1.82725412314402, 1.93164365299958, 1.9722929538061, 2.15842019312484, 1.9200507796933, 1.95804730344453, 1, 0.836176542548747, 1

问题 Is it possible to reflect upon a chain of method calls to determine at what point you are in the chain of calls? At the very least, is it possible to discern whether a method is the last call in the chain? $instance->method1()->method2()->method3()->method4() Is it possible to do the same using properties that return instances of objects? $instances->property1->property2->property3->property4 回答1: If all the methods you're calling are returning the same object to create the fluent interface

问题 My class contains 14 private methods and 1 public method . The public method calls all the private method directly or indirectly via other private methods. The public method also has a call to a DAO that queries the database. I wrote a unit test for the class. Since you can't write unit test for private methods, I changed all the private methods to default access and wrote unit test for them. I was told that I shouldn't change the encapsulation just for the purpose of testing. But my public

问题 Code: outerMethod { @Override public void run() { innerMethod throws IOException } } Method that exceuted in thread throws checked exception - IOException. I need to handle this exception in main thread. Like: outerMethod() throws IOException { @Override public void run() { innerMethod() throws IOException } } Is this possible? If no, what would be a better way to do this? Thanks. 回答1: Use FutureTask http://docs.oracle.com/javase/6/docs/api/java/util/concurrent/FutureTask.html#get%28%29 . It