methods

问题 I have a class that creates a JFrame. When the JFrame is created it has a start button. When the start button is clicked, it runs two threads until the stop button is clicked. The two threads are in another class file. From the class that contains the threads, how can I access the JFrame instance in order to change value that are displayed? 回答1: In order to acheive this you have to pass the reference of JFrame using this keyword. 回答2: To have access to a private instance within another class,

问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 5 years ago . If I defined a method: def weird_method(first_argument, second_argument) #code here end so this way I can pass arguments like : 1, :digit, 'some', "more"(Fixnum, Symbol, String etc.) , BUT what If I wanted to pass just this: argument1, argument2 , I mean values that have no type and look like local

问题 if i do: method(); method(); both calls will run in parallel (at same time) i just would like to make the second method(); wait until the first method(); is finished before to start, and do it dynamically cause i can't know how many times i will launch method(); at same time . Is it possible? just for example, those runs at same time as i can see... http://jsfiddle.net/Lcgb8/ 回答1: You could use then if you return a Deferred. E.g. function method() { var d = $.Deferred(); //do something async

问题 I have a CoreData model in my iPhone app, which is linked to a SQL Database with more than 50k records. When I generate the records classes, Xcode uses the @dynamic directive for properties. I have a property named "ISFAV", NSNumber type (CoreData does not use BOOL or Integer, it uses object types). Being short, I change the ISFAV property when the user taps on a button in this way: if (![record.ISFAV intValue]) record.ISFAV=[NSNumber numberWithInt:1]; else record.ISFAV=[NSNumber

问题 Hi so I have an assignment due in 6 hours and I am completely lost. I have new methods added to my existing work done so far but I don't know how to do them. The text file has names and scores, and the first method needs to check if the score is among the top 10 and return true/false: the last method that I am lost in needs to write the high score into highscore.txt file, at the correct position(in descending order), the method uses readHighScore() method to find the line number where the

问题 I am trying to do ajax delete with jquery but getting http error 400. I was searching and I've seen that there is some problems with delete method in jquery. Here's my js, controller(spring 3) and request from Chrome. If you now what is the mistake please tell, or give some links. $.ajax({ url: 'additions/cancelUpload', type: 'DELETE', data: {filename : ui.draggable.get(0).file.name}, success: function (res) { alert(res); } }); execution does not passed here: @RequestMapping(value =

问题 I'm newbie on creating web services with Jersey and I'm facing with this problem: @GET @Path("/logoutUser") @Produces(MediaType.APPLICATION_JSON + ";charset=utf-8") public Response logoutUser(@QueryParam("userName") String userName) { if (userName.equalsIgnoreCase("jmart") || userName.equalsIgnoreCase("jromero")) { return Response.status(Response.Status.OK).entity("Logout realizado").type(MediaType.APPLICATION_JSON).build(); }else { throw new CustomNotFoundException("No se ha podido realizar

问题 I just discovered that when calling Java from Matlab object.method(arg1,...,argn) is equivalent to method(object, arg1,...,argn) The problem here is I also have a method.m that does some translation from Java to Matlab (eg. convert String[] to cell of strings). My method.m looks like function result = method(object, arg1,...argn) intermediate = object.method(arg1,...argn); result = translate(intermediate); What is happening is when I call method(object, arg1,...,argn) , it does the direct

问题 Is there a way in Python to add to the locals name-space by calling a function without explicitly assigning variables locally? Something like the following for example (which of course doesn't work, because locals() return a copy of the local name-space) where the print statement would print '1'. def A(): B(locals()) print x def B(d): d['x'] = 1 回答1: In Python 2.* , you can disable the normal optimizations performed by the Python compiler regarding local variable access by starting your

问题 So I'm trying to figure out if there is some method to dynamically create/assign a method to a class in Java. If it were C, I would just do it as follows using pointers: public class Foo { void bar(void *ptr) {....} }; int main() { Foo f = new Foo(); f.bar({"my function" ...}) } However, Java of course has no pointers, so is there any way to get a similar functionality out of a Java application? 回答1: In Java, you would normally declare an interface with a method to be called. For example, if