Will the above code first wrap the int literal 8 in an Integer and then assign its reference to variable ob? Yes. (Or rather, it will box the int value into an Integer object, and then assign the reference to the variable ob. The fact that the integer value is a literal is irrelevant here, … Read more
Modern compilers typically implement the (Named) Return Value Optimization, by which the copy you reference (and would logically expect) is not done. Ever since Visual Studio 2005 (VC++ 8.0) I don’t think twice about returning objects.
You can observe isDirty to see if any of the object’s values have been modified since last save (if you are using Ember Data). Alternatively you can pass a comma separated list of properties to observes. This might be long if you have a lot of properties on your object, but will work. A third … Read more
You are not supposed to call a class method directly, instead create an instance of that class: p1 = players(your, values, here) skierDirection, playerImage = p1.turn(skierDirection, playerImages) To elaborate on the error you’re getting: TypeError: turn() missing 1 required positional argument: ‘playerImages’ It’s because turn needs an instance of players as first argument (self). A … Read more
You can use a subscript to reference the object: > var obj = { ‘ア’ : ‘testing’, ‘ダ’ : ‘2015-5-15’, ‘ル’ : 123, ‘ト’ : ‘Good’ }; > undefined > obj[‘ア’] > “testing” You should also not that object keys and values in JavaScript objects are separated by :(colons) not => (fat commas)
You’d have to put a static counter in that was incremented on construction: public class Foo { private static long instanceCount; public Foo() { // Increment in atomic and thread-safe manner Interlocked.Increment(ref instanceCount); } } A couple of notes: This doesn’t count the number of currently in memory instances – that would involve having a … Read more
Here is a generic function that recursively combines two composite JSON entities by concatenating arrays at the same position: # Recursively meld a and b, # concatenating arrays and # favoring b when there is a conflict def meld(a; b): a as $a | b as $b | if ($a|type) == “object” and ($b|type) == … Read more
According to Java Object superclass, java.lang.Object does not extend Object. Other than that, all classes, i.e. class ClassName { //some stuff } implicitly extend Object class, if they don’t extend any other super-class. Interfaces, on the other hand, do not extend Object, as Interface, by definition, can not extend Class. Also, Interfaces can not contain … Read more
You can’t. You’re only passing the object { black : ‘bad’, gray : ‘not so bad’ } into test. This object does not intrinsically have the name “dark”, it’s just an object that happened to exist as the property dark of the object a. This information is irretrievably lost when passing it into a function. … Read more
I finally solved it! // GSON GsonBuilder gsonBilder = new GsonBuilder(); gsonBilder.registerTypeAdapter(Conteudo.class, new InterfaceAdapter<Conteudo>()); gsonBilder.setPrettyPrinting(); Gson gson =gsonBilder.create(); String str2send = gson.toJson(message); Mensagem msg_recv = gson.fromJson(str2send,Mensagem.class); Note that: “registerTypeAdapter(AbstractClass.class, new InterfaceAdapter());” by AbstractClass.class i mean the class that you are implementing in my case it was Conteúdo that could be ConteudoTweet or ConteudoUserSystem and so … Read more