methods

问题 After browsing the web for a while looking for an answer to my question I can't find any posts which seem to offer an effective solution to my issue. Currently I would overload a method for each different data type input. For example: public void ex1(String in){ public void ex1(int in){ I would imagine there would be a way to condense this into one line public void ex1(opt(String in), opt(int in)){ or public void ex1((String/int) in){ However, as far as I've seen, nobody has presented a

问题 I'm new to C# and Unity, and here I am tweaking and creating my first minigame. Here is the problem: I've got a little cube, that moves. I've implemented a method that checks the next position before making a move. The method receives as parameters the current cube position, and the direction: public bool okToMove(Transform playerCurrentPosition , int directionIndex) { Transform playerNextPosition = playerCurrentPosition; playerNextPosition.Translate(toDirection(directionIndex)); if

问题 I have a given interface called IAbc, which consists of a method with a parameter of interface IXyz. I am not sure whether I should create an attribute IXyz or an attribute XyzImpl in my implementation of IAbc. public interface IXyz { } public class XyzImpl implements IXyz { public void doSomething() { ... } } public interface IAbc { public void setXyz(IXyz val); public IXyz getXyz(); } Implementation 1: public class AbcImpl1 implements IAbc { private XyzImpl attr; public void setXyz(IXyz val

问题 Not sure how to properly formulate this (hence, how to look it up), but here goes: I understand how a method applied to an object can become a function object. For example: case class User(name: String, age: Int) val user = User("", 0) user.name _ // () => String So, if I had a method def meth(f: () => String) , I could do: meth(user.name _) Is is possible to define a type that has as instances the methods of class User ? (the function objects obtained from these methods, more precisely) In

问题 I am trying to learn how to create and use javascript properties and methods using javascript prototypes and am having a bit of difficulty. In the following code I am trying to create a simple object called 'radius' that has a radius of 4 and has a method called 'getCircumference' which produces the circumference using the object radius' value. function radius() { this = 4; } function getCircumference() { var pi = 3.141592; var circumference = this.value * 2 * pi; document.write(circumference

问题 I have a Generic Class Factory class that has two methods one utilizes the Class generic T value and the other only uses its own method generic definitions. public class GenericClassFactory<T extends ClassMatchable> { public <E, K> E newObject(ClassMatcher<E, K> matcher, K key, String packageName){...} public <K> T newObject(K key, String packageName){...} } The method that utilizes the T generic works fine but when I want to use the other method that doesn't care what the T generic is it won

问题 I'm currently on Chapter 7 of Hartl's Tutorial, and every time I run bundle exec rspec spec/ the following results: /Users/siciliana/sample_app/spec/spec_helper.rb:31:in `block in <top (required)>': undefined method `infer_base_class_for_anonymous_controllers=' for #<RSpec::Core::Configuration:0x007f7fb3a62b80> (NoMethodError) from /usr/local/rvm/gems/ruby-2.0.0-p0/gems/rspec-core-2.6.4/lib/rspec/core.rb:79:in `configure' from /Users/siciliana/sample_app/spec/spec_helper.rb:11:in `<top

问题 I am currently programming a Jump n' Run game in C# using OpenTK Framework and OpenGL. Open TK provides preset functions like GameWindow.Run(); or GameWindow.onUpdateFrame(); onRenderFrame(); As far as i thought through it, all actions that draw OpenGL elements or primitives should belong into onRenderFrame, whereas game events like player movement should be performed in onUpdateFrame, so these actions can be calculated in advance before rendering a new frame. Am I right? Would it make a

问题 So I have code: puts 'What is your name?(Enter in field below)' input = gets.chomp puts 'end' occupationslist = ['Engineer', 'Clerk', 'Doctor', 'Demolition Expert', 'Athlete', 'None',] oclistlength = occupationslist.length rand1 = rand(oclistlength) occupation = ocupationslist[rand1] def occupations puts input puts 'Occupation: ' + occupation puts 'Rating: ' + rand(1-12).to_s end occupations It is supposed to display your name(that you entered), a random occupation, and a random rating but I

问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: Understanding Python decorators What function does the "class decorator"/"method decorator" ( @ ) serve? In other words, what is the difference between this and a normal comment? Also, what does setter do when using @previousMethod.setter before a method? Thank you. 回答1: @decorator def function(args): #body is just syntactic sugar for: def function(args): #body function = decorator(function) That's really it. As