Why is the default access modifier in JUnit 5 package-private? It’s not the “default”. There technically is no default. Rather, in JUnit Jupiter you have a choice: public, protected or package-private. What is the benefit of changing it to package-private? The benefit is that you don’t have type public anymore. If your IDE automatically generates …
Typically, Python code strives to adhere to the Uniform Access Principle. Specifically, the accepted approach is: Expose your instance variables directly, allowing, for instance, foo.x = 0, not foo.set_x(0) If you need to wrap the accesses inside methods, for whatever reason, use @property, which preserves the access semantics. That is, foo.x = 0 now invokes …
class A { public: int x; protected: int y; private: int z; }; class B : public A { // x is public // y is protected // z is not accessible from B }; class C : protected A { // x is protected // y is protected // z is not accessible from …
First off, static is not really part of the Ruby jargon. Let’s take a simple example: class Bar def self.foo end end It defines the method foo on an explicit object, self, which in that scope returns the containing class Bar. Yes, it can be defined a class method, but static does not really make …
When foo receives a FooBase reference, the compiler doesn’t know whether the argument is a descendant of Foo, so it has to assume it’s not. Foo has access to inherited protected members of other Foo objects, not all other sibling classes. Consider this code: class FooSibling: public FooBase { }; FooSibling sib; Foo f; f.foo(sib); …
I also had a similar thought and decided to try write something. A vanilla js solution. Still early but I like what came out of it. You might find it interesting also. It’s not exactly c# but provides a more strict ecosystem. And some other advanced js features in a lightweight solution. https://github.com/iamlothian/rucksack.js This is …
1) why I would want to use properties instead of fields (especially when it appears I am just adding additional code You should always use properties where possible. They abstract direct access to the field (which is created for you if you don’t create one). Even if the property does nothing other than setting a …
Access to the book is by no mean necessary. The issues we are dealing here are Dependency and Reuse. In a well-designed software, you try to isolate items from one another so as to reduce Dependencies, because Dependencies are a hurdle to overcome when change is necessary. In a well-designed software, you apply the DRY …