Java inner classes in c#

Question

I have the following Java code:

public class A {
    private int var_a = 666;

    public A() {
        B b = new B();
        b.method123();
        System.out.println(b.var_b);
    }

    public class B {
        private int var_b = 999;

        public void method123() {
            System.out.println(A.this.var_a);           
        }
    }
}

Which yields 666 and 999. Now, I've tried to set up similar code in c#, but it seems that it is not possible to accomplish the same. If that's the case, how you usually achieve a similar effect when programming in c#?

Answer 1

You need to make the inner class take an instance of the outer class as a constructor parameter. (This is how the Java compiler implements inner classes)

Answer 2

Inner classes are handled slightly differently between C# and Java. Java implicitly passes a reference to an instance of the outer class to the inner class, allowing the inner class to access fields of the outer class. To gain similar functionality in C#, you just have to do explicitly what Java does implicitly.

Check out this article for some more information.