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可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I need to determine, after all files have been included, which classes extend a parent class, so: class foo{ } class boo extends foo{ } class bar extends foo{ } and I'd like to be able to grab an array like: array('boo','bar'); 回答1: If you need that, it really smells like bad code, the base class shouldn't need to know this. However, if you definitions have been included (i.e. you don't need to include new files with classes you possibly have), you could run: $children = array(); foreach(get_declared_classes() as $class){ if($class

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I've created a C++ class ( myPixmap ) to encapsulate the work performed by the OpenGL GLUT toolkit. The display() member function of the class contains most of the code required to set up GLUT. void myPixmap::display() { // open an OpenGL window if it hasn't already been opened if (!openedWindow) { // command-line arguments to appease glut char *argv[] = {"myPixmap"}; int argc = 1; glutInit(&argc, argv); glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB); glutInitWindowSize(640, 480); glutInitWindowPosition(30, 30); glutCreateWindow("Experiment");

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have built a web application using spring-mvc and mongodb as database. I used maven3 to build the application. Project builds successfully but when application starts I am getting the following error in the logs due to which my application does not start. This used to work few months ago. Caused by: java.lang.IncompatibleClassChangeError: class org.springframework.core.type.classreading.ClassMetadataReadingVisitor has interface org.springframework.asm.ClassVisitor as super class Please let me know if any pointers or if you guys need more

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have built a web application using spring-mvc and mongodb as database. I used maven3 to build the application. Project builds successfully but when application starts I am getting the following error in the logs due to which my application does not start. This used to work few months ago. Caused by: java.lang.IncompatibleClassChangeError: class org.springframework.core.type.classreading.ClassMetadataReadingVisitor has interface org.springframework.asm.ClassVisitor as super class Please let me know if any pointers or if you guys need more

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm having problem to start a JavaFX Application from a Main method of a class which doesn't extend javafx.application.Application In my application there is the MainApp.java which should start the overriden method start() in the MainUIController.java , which extends Applciation When I start the Main method from the MainUIController.java everything works fine. MainApp.java public class MainApp { public static void main(String[] args) { PersonJDBCTemplate jdbc = connect(); MainUIController mUIc = new MainUIController(jdbc); mUIc.start(new

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: PMD would report a violation for: ArrayList<Object> list = new ArrayList<Object>(); The violation was "Avoid using implementation types like 'ArrayList'; use the interface instead". The following line would correct the violation: List<Object> list = new ArrayList<Object>(); Why should the latter with List be used instead of ArrayList ? 回答1: Using interfaces over concrete types is the key for good encapsulation and for loose coupling your code. It's even a good idea to follow this practice when writing your own APIs. If you do, you'll find

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I was working on my program, and it seems something in the settings changed. Suddenly I have the error "Duplicate interface declaration for class 'Foo'". It mentions a header file being duplicated but there's only one copy. Interestingly this is only happening in debug mode, not device mode. Does anyone have any idea what might be wrong? I am using Objective-C++ and some static libraries. 回答1: I had exactly the same problem. I had two copies of the header and had deleted the old one by deleting the reference to it in xcode. There was then

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: What I am trying to do is make a element with custom class for ports and path so that I can add an element with custom path and my own markup for ports.This way when I create an element I will pass dynamic path for its shape just like elements of path class behave and as I have also extended from PortsModelInterface I will also have my own markup for ports. This whole effort is to make svg scalable for zomming. Previously I was using html custom element with my custom ports which was working fine but html of custom elements wasn't scaling on

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Are there any good ways to mock concrete methods in abstract classes using PHPUnit? What I've found so far is: expects()->will() works fine using abstract methods It does not work for concrete methods. The original method is run instead. Using mockbuilder and giving all the abstract methods and the concrete method to setMethods() works. However, it requires you to specify all the abstract methods, making the test fragile and too verbose. MockBuilder::getMockForAbstractClass() ignores setMethod(). Here are some unit tests examplifying the

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I have a UIView and I'm trying to set its layer properties. self . colorSwatch = [[ UIView alloc ] initWithFrame : CGRectMake ( 400 , 150 , 100 , 100 )]; self . colorSwatch . layer . cornerRadius = 8 ; However, when I try to access the .layer.cornerRadius property, I get a warning that says "Property 'cornerRadius' cannot be found in forward class object 'CALayer *'. What does this mean? Thanks 回答1: It doesn't know what type of object the layer property is. Add #import to the top of your file. 回答2: You need to import the file