IC314.04 https://www.insightcoder.com/314/how-angular2-corrected-my-understanding-of-dependency-injection/

Foo.cs

public class Foo : IFoo
{
    private IBar _bar;
    public Foo(IBar bar)
    {
        _bar = bar;
    }
    // ...
}

Program.cs

public class Program
{
    public static int Main(string[] args)
    {
        var foo = IocContainer.Resolve<IFoo>();
        return 0;
    }
}