overriding

问题 I'm making a dropdown menu, but all the styles from the first ul is being added to the styles on every ul beneath the first ul. I've tried overriding the styles using !important, and moving the css to different levels. Anyone got a clue about whats going on here? This image probaly explains it the best way: http://screencast.com/t/UrkRbjjaYctp Thanks. 回答1: #menuwrapper > ul{ padding-left:37px; } #menuwrapper ul ul { padding-left:40px; } This should solve your issue 回答2: This is expected

问题 I'm trying to create and interface of generic type methods, then implement them in a subclass and so on. But I cannot figure out why my subclass throws an error that says I have not overridden the abstract method from my interface. Code is as follows: package stdmathops1; public interface StdMathOps1<T>{ public <T> T div(T f, T s); } //this is all very simple and not the whole of it, at this point I'm just //trying to figure out why it won't override the div method. class Fraction implements

问题 I am having an issue creating a custom slug for the protocol model below. The custom save function to create the slug works fine with I do in the Admin page but not when I use the add_protocol view below. The Study model has a field called protocolnumber so I am not sure why it thinks it does not. I think it has something to do with how the view is set up, i.e. the commit = false and then the commit=true . Maybe because on the commit = False it is trying to assign a slug value using info from

问题 This question already has answers here : Why getClass returns the name of the class + $1 (or $*) (3 answers) Closed 6 years ago . Class A{ public void test(){ B b = new B(); System.out.println( "Class Name: " + b.createClassC().getClass() ); } } Class B{ public C createClassC(){ C c = new C(){ @Override public boolean equals( Object other ){ return true; } }; } } Class C{ int val = 8; } Output: Class Name: package.name.here .B Can some one tell me why anonymous class types gives the enclosing

问题 Just say, that point of my question is learn to understand jls. I believe that all in jls are true. Consider next snippet from jls: 8.4.8.1. Overriding (by Instance Methods) An instance method m1, declared in class C, overrides another instance method m2, declared in class A iff all of the following are true: C is a subclass of A. The signature of m1 is a subsignature (§8.4.2) of the signature of m2. Either: m2 is public, protected, or declared with default access in the same package as C, or

问题 I would like to override the selected text color for all tabs in material ui for React. I know I can override some portions with code such as this: const theme = createMuiTheme({ overrides: { MuiTab: { root: { color: '#000000', backgroundColor: '#ffffff', '&:hover': { backgroundColor: 'rgba(108, 130, 168, 0.11764705882352941)', color: '#000000', } } } } }); followed by <MuiThemeProvider theme={theme}> <HomePage/> </MuiThemeProvider> However, when the tab is selected it applies a class such as

问题 I have a class which extends the Sprite object in as3. I need to be able to override the transform.matrix setter in this class but haven't been successful in doing so. I've tried many things, along with creating my own separate class which extends the Transform class and then overrides its set matrix function, and set my transform = new CustomTransform(). Sadly this didn't work. In code this is what i tried: public class MyClass extends Sprite { public function MyClass() { super(); transform

问题 I want to override a method definition in Grails. I am trying to use Groovy metaprogramming as the class which I want to override belongs to a framework. Below is the original class. class SpringSocialSimpleSignInAdapter implements SignInAdapter { private RequestCache requestCache SpringSocialSimpleSignInAdapter(RequestCache requestCache) { this.requestCache = requestCache; } String signIn(String localUserId, Connection<?> connection, NativeWebRequest request) { SignInUtils.signin localUserId

问题 I have some code that has optional built in code that attempts to detect C++0X. Lets pretend that that works (discussing how bad and how not cross platform that is is out of scope for this question). Lets say it has a #define DETECTCXX0X . iff it is C++0X. How awful of an idea is it to do this: #ifndef DETECTCXX0X #define override #endif And do you have any alternatives? (I suppose the correct thing to do is to just not use explicit overriding). 回答1: As Igor Tandetnik points out it's legal in

问题 Yep, I know there are other questions like these. I checked each one, but I'm not getting what I'm doing wrong. My own template is located at: src/Grit/GritWsBundle/Resources/views/layoutBase.html.twig Which contains (hidden unnecessary markups): <!DOCTYPE html> <html> <head></head> <body> <div class="container"> {% block content %} {% endblock %} </div> </body> </html> Then, following the documentation I have created this structure to override FOSUserBundle template: src/Grit/GritWsBundle