private

问题 Given this situation: object ResourceManager { private var inited = false def init(config: Config) { if (inited) throw new IllegalStateException // do initialization inited = true } } Is there any way that I could make inited somehow “private to init()”, such that I can be sure that no other method in this class will ever be able to set inited = false ? 回答1: Taken from In Scala, how would you declare static data inside a function?. Don’t use a method but a function object: val init = { // or

问题 Question title kind of explains it all. I've seen other questions referencing this but I think they are more geared towards the github repository being public. Using this configuration in the dependent project works when the repository is public: <repositories> <repository> <id>company-core-mvn-repo</id> <url>https://raw.github.com/company/company-core/mvn-repo/</url> <snapshots> <enabled>true</enabled> <updatePolicy>always</updatePolicy> </snapshots> </repository> </repositories>

问题 I'm currently programming a Blackjack application in Java and it needs to be written in an MVC architecture. I have all my models, views and controllers fully coded and everything works perfectly. However, I'm wondering what the best way of attaching listeners to components is (e.g, a JButton). My current design declares all components in the view that need listeners as public final. It then passes the view to the controller. From there, the controller has full reign to access the components

问题 In this code why can I access the private member of the object with no compiler error? class Cents { private: int m_nCents; public: Cents(int nCents=0) { m_nCents = nCents; } // Copy constructor Cents(const Cents &cSource) { m_nCents = cSource.m_nCents; } Cents& operator= (const Cents &cSource); }; Cents& Cents::operator= (const Cents &cSource) { cSource.m_nCents is private why can I do the following: m_nCents = cSource.m_nCents; // return the existing object return *this; } 回答1: Because

问题 This question already has answers here : Why can I use auto on a private type? (4 answers) Closed 6 years ago . Let's consider the next code: #include <iostream> #include "mydemangled.hpp" using namespace std; struct A { private: struct B { int get() const { return 5; } }; public: B get() const { return B(); } }; int main() { A a; A::B b = a.get(); cout << demangled(b) << endl; cout << b.get() << endl; } And the compiler (gcc 4.7.2) yells saying that A::B is private. All right. So, I change

问题 I recently removed a private specified from a class definition because it was at the top, immediately after the class keyword: class MyClass { private: int someVariable; // ... I thought that it was redundant. A coworker disagreed with this, saying that it effectively "hid" the private nature of the data. Most of our legacy code explicitly states the access specifiers, and usually intermingles them inconsistently throughout the definition. Our classes also tend to be very large. I'm trying to

问题 I have a nested child class with public properties with private setters. In the parent class I am able to use Automapper to map to the child class and the values of the private setters are being set. Everything I've read points to Automapper not supporting this and requiring a custom constructor in the child class to populate private setters. Is the current version using reflection or something to map the private setters? The setters are definitely private because in the parent class I am

问题 Is it possible to have private properties in a model? Like the locally declared variables in a (constructor) function, not attached to this , but declared locally and visible only by whatever is defined in the (constructor)function. Example without BB View: function MyView(aModel){ var $internalInput = $('<input>'); this.render: function($where){ $internalInput.val(aModel.get('SomeProperty')); $where.append($('<div class="inputWraper">').append($internalInput)); }; this.toggleReadonly:

问题 Is it possible to have private properties in a model? Like the locally declared variables in a (constructor) function, not attached to this , but declared locally and visible only by whatever is defined in the (constructor)function. Example without BB View: function MyView(aModel){ var $internalInput = $('<input>'); this.render: function($where){ $internalInput.val(aModel.get('SomeProperty')); $where.append($('<div class="inputWraper">').append($internalInput)); }; this.toggleReadonly:

问题 I'm relatively new to Python so I hope I haven't missed something, but here goes... I'm trying to write a Python module, and I'd like to create a class with a "private" attribute that can (or maybe 'should') only be modified through one or more functions within the module. This is in an effort to make the module more robust, since setting of this attribute outside of these functions could lead to unwanted behaviour. For example, I might have: A class that stores x and y values for a scatter