Is there a way to get a list of innerclasses in C#?
You want Type.GetNestedTypes. This will give you the list of types, which you can then query for their names.
inner-classes
C++ – What’s the point of nested classes?
I’m studying a little of C++ and now I’m fighting against it’s similitudes with Java. First of all be aware that C++ nested classes are similar to what in Java you call static nested classes. There isn’t anything in C++ syntax to reproduce Java nested classes. I discover that private attributes of “container” class are … Read more
Accessing outer class variable in inner class
Assuming your outer class is called Outer, from the scope of the inner class(non-static), Outer.this.foo to get at the field. For example, Outer.this.foo=new ArrayList<>(); where Outer is the name of the class and foo identifies the field. You can also grab it directly as foo=new Baz() but it’ll pick the inner field if there’s a … Read more
Static inner classes in scala
You can do something like this if don’t need access to the outer class in the inner class (which you wouldn’t have in Java given that your inner class was declared static): object A{ class B { val x = 3 } } class A { // implementation of class here } println(new A.B().x)
Nested Class Definition in source file
You can. If your inner class has a method like: class MyClass { class NestedClass { public: void someMethod(); }; // main class members here }; …then you can define it in the .cpp file like so: void MyClass::NestedClass::someMethod() { // blah } Structures are almost the same thing as classes in C++ — just … Read more
Creating an instance of a nested class in XAML
This question is pretty old, and I don’t know if it would have worked with the version of WPF back in 2010, but now you can make it work by using the “real” (internal) name of the nested type: <local:A+B /> If you’ve ever looked a disassembled code, that’s how nested types look like: ParentTypeName+Nested
How can I resolve “an enclosing instance that contains X.Y is required”?
First of all you have to create an object of X class (outer class) and then use objX.new InnerClass() syntax to create an object of Y class. Try, X x=new X(); X.Y y=x.new Y();
Strange syntax for instantiating an inner class
Inner classes (like Button.ClickEvent) need a reference to an instance of the outer class (Button). That syntax creates a new instance of Button.ClickEvent with its outer class reference set to the value of button. Here’s an example – ignore the lack of encapsulation etc, it’s just for the purposes of demonstration: class Outer { String … Read more
Instantiate private inner class with java reflection
Yes, you can instantiate a private inner class with Java reflection. To do that, you need to have an instance of outer class and invoke the inner class constructor which will use outer class instance in its first argument. class OuterClass { private class InnerClass { { //this block is just to confirm that the … Read more
Method local inner class vs inner class
I guess you expected the local class method to be invoked. That didn’t happen, because you’re using new A() outside the scope of local class. So, it accesses the next closer candidate in scope, that would be the inner class. From JLS §6.3: The scope of a local class declaration immediately enclosed by a block … Read more