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问题 I created a class Debug in which all properties and methods are static. Using late static binding I use this class as a logger of what is being done and at which moment (in fact I'm testing now performance issue, so I would like to now what and when goes). So at the moment I have something in each main method of each class like Debug::log(__CLASS__ . '::' . __METHOD__); . In Debug::log() method I can add time and store it in some array. If I'd wanted some day to change behaviour I would need

问题 I would like to change class for one single attribute in detailview, based on a condition: If I wouldn't want to make it conditional, it would be working like so: [ 'attribute' => 'ungueltig', 'format' => 'boolean', 'contentOptions' => [ 'class' => 'danger', ] ], I want this one to change to conditional, and I have tried a lot of different ways, e.g.: [ 'attribute' => 'ungueltig', 'format' => 'boolean', 'contentOptions' => function ($model) { if ($model->ungueltig == 1) { return ['class' =>

问题 I can't figure out if this is because of me, or the multiprocessing module that Python2.7 has. Can anyone figure out why this is not working? from multiprocessing import pool as mp class encapsulation: def __init__(self): self.member_dict = {} def update_dict(self,index,value): self.member_dict[index] = value encaps = encapsulation() def method(argument): encaps.update_dict(argument,argument) print encaps.member_dict p = mp() #sets up multiprocess pool of processors p.map(method,sys.argv[1:])

问题 I have a class like: Class persona implements Serializable { int age; String name; } And my first Activity fill an array: persona[] p; Then, I need this info in another Activity. How I can send it? I try to make: Bundle b = new Bundle(); b.putSerializable("persona", p); But I Can't. 回答1: AFAIK the is no method that put a serializable array into bundle any way here is a solution to use that uses parcel change you class to this import android.os.Parcel; import android.os.Parcelable; public

问题 I was wondering if someone could explain to me how I might be able to implement something similar to this: namespace advanced_cpp_oop { class A { B b; }; class B : public A { }; } int main() { } Where an instance of a base class can contain an instance of a derived class? When the above code is compiled the following error is generated: g++ advanced_cpp_oop.cpp advanced_cpp_oop.cpp:8:5: error: ‘B’ does not name a type The (almost) equivalent Java code which does compile is: public class

问题 I have a web service that returns an object of a custom class (user): Web service code public class User { public string login { get; set; } public string firstName { get; set; } public string lastName { get; set; } public string email { get; set; } } [WebMethod] public User GetUserInfo(int userID) { ITDashboardDataContext db = new ITDashboardDataContext(); User usr = (from u in db.tl_sb_users where u.userID == userID select new User { firstName = u.firstName, lastName = u.lastName, email =

问题 I have a web service that returns an object of a custom class (user): Web service code public class User { public string login { get; set; } public string firstName { get; set; } public string lastName { get; set; } public string email { get; set; } } [WebMethod] public User GetUserInfo(int userID) { ITDashboardDataContext db = new ITDashboardDataContext(); User usr = (from u in db.tl_sb_users where u.userID == userID select new User { firstName = u.firstName, lastName = u.lastName, email =

问题 I have some classes I ported from Java to JavaScript. I would like to combine them in a library. for example: var myLibrary = { version: 1.0, ...more code... }; Now a class I would like to add to this library (this was ported from Java to JavaScript!) follows: Edit: new version below This class works as beautifully as is, but encapsulating it is proving difficult. I would like to do something like this: var ticker = new myLibrary.jTicker(30,10); var otherObj = new myLibrary.object2(); The

问题 If I have a class template which contains an array with another class as type with undefined amount of fields (the amount is a template parameter), how do I run their constructors (if they take parameters)? Here some example code: class ArrayClass { public: ArrayClass() = delete; ArrayClass(int anyParameter) {} }; template <const int amountOfFields> class ContainingClass { ArrayClass myArray[amountOfFields]; public: ContainingClass(); }; template <const int amountOfFields> ContainingClass

问题 I am trying to add extra properties to my Kohana (v3.3) model. class Model_mymodel extends ORM { protected $_myvar = NULL; public function set_myvar() { $this->_myvar = new Newclass(); } public function get_myvar() { return $this->_myvar; } } And then I try and set it $inst = ORM::factory('mymodel', 1)->find(); $inst->set_myvar(); var_dump($inst->get_myvar()); This returns NULL. I dont see why this would be a problem. Is there something that I am missing? Thanks 回答1: extend the __get method