methods

问题 I am aware that JSF may call a managed bean method a couple of times even if it is called only once in .xhtml. I understand that is due to encode* methods. I would like to ask you to explain the following case to me. I have a JSF file that sort of looks like this: <h:form id="form1"> <h:panelGroup id="output"> ... <h:commandLink...> <f:ajax render=":form1:output"/> </h:commandLink> </h:panelGroup> </h:form> All clear so far; pressing the command link rerenders a part of the page within the

问题 This question already has answers here : Python title() with apostrophes (5 answers) Closed 2 years ago . first post so go easy on me. I am trying to make it to where when I run my class the name of the restaurant comes back like a title. The problem I ran into was with joe's it comes back as Joe'S with a capital S when I use title(). When I use capitalize() Joe's comes back fine but burger king comes back as Burger king with a lower case k. I am trying to find out how to simplify this so I

问题 I would like to force SubClasses to @Override method from SuperClass . Method in SuperClass can't be abstract , cause I wanna provide some basic implementation. Here is example of my code: public abstract class GenericModel<T extends GenericModel> { long id, counter; public String methodToBeOverridenInSubClass(String name) { // some basic implementation // rest details will be provided by subclass return name; } } public class SubClass extends GenericModel<SubClass> { @Override public String

问题 I have a generic, abstract class ( SuperClass ). I want to have there a main method, that would be a default main for each subclass and would do the same, but with proper subclass object that derived and called it. Like this: public abstract class SuperClass { // some code here... public static void main(String args[]) { // here instantiate the subclass // extending this SuperClass, and call // some methods } } public SubClass extends SuperClass { // here just implement some // abstract

问题 I have a generic, abstract class ( SuperClass ). I want to have there a main method, that would be a default main for each subclass and would do the same, but with proper subclass object that derived and called it. Like this: public abstract class SuperClass { // some code here... public static void main(String args[]) { // here instantiate the subclass // extending this SuperClass, and call // some methods } } public SubClass extends SuperClass { // here just implement some // abstract

问题 I'm trying to learn Scala and the Play Framework at the same time. Scala looks to me like it has a lot of really cool ideas, but one of my frustrations is trying to understand all of the different syntaxes for methods/functions/lambdas/anonymous functions/etc. So I have my main application controller like so: object Application extends Controller { def index = Action { Ok(views.html.index("Your new application is ready.")) } } This tells me I have a singleton Application that has one method,

问题 This is a follow-up question to this one. Take a look at these two examples: var number1 = new Number(3.123); number1 = number1.toFixed(2); alert(number1); var number2 = 3.123; number2 = number2.toFixed(2); alert(number2); I realize they both end up with the same value, but is it correct thinking to refer to a method of a primitive value? (In other words, 3.123.method as opposed to object.method?) 回答1: In JavaScript, everything is an object, even functions and integers. It is perfectly OK to

问题 Environment: Visual Studio 2012, .NET 4 Framework, ASP.NET web application (C#) I'd like to know the best, most advisable approach to accomplish limiting incoming arguments (of any type...int, string, etc...) to a predefined set of desired values. I'd like to know the industry-accepted best way. (the following code does not work - it's just to better illustrate the question) Lets say I have a utilities class something like this: public class Utilities { public string ConvertFromBytes(int

问题 Is it possible to replace a method of a Moose object at runtime ? By looking at the source code of Class::MOP::Method (which Moose::Meta::Method inherits from) I concluded that by doing $method->{body} = sub{ my stuff } I would be able to replace at runtime a method of an object. I can get the method using $object->meta->find_method_by_name(<method_name>); However, this didn't quite work out. Is it conceivable to modify methods at run time? And, what is the way to do it with Moose? 回答1: Moose

问题 I am just a beginner in Java and have stumbled upon multi-threaded applications. I know this question is similar to some posts here but I couldn't find a better answer for my query. Basically, I want to pass an object to a static method and the method will just return an output based on the values/properties of the object. For every call, I am creating a new instance of the object and there is no chance in any way that I will modify the object inside the method. Now, my question is, will JVM