static void Main(string[] args)
{
OuterClass outer = new OuterClass(10);
OuterClass.InnerClass inner = new OuterClass.InnerClass();
OuterClass.InnerClass inner2 = new OuterClass.InnerClass(outer);
outer.DisplaySelf();
inner.DisplaySelf();
Console.WriteLine($"Outer adding Inner Class Fields result: {outer.AddInnerClassFields()}");
Console.WriteLine($"Inner adding Outer Class Fields result: {inner.AddOuterClassFields()}");
Console.ReadLine();
}
public InnerClass(OuterClass outer)
{
this.outer = outer;
}