C#•2y ago

Static Classes without Implementation

What do static classes without implementation mean? Like this:

c#
    public static class Host
    {
        public static HostApplicationBuilder CreateApplicationBuilder();
        ...
    }

c#
    public static class Host
    {
        public static HostApplicationBuilder CreateApplicationBuilder();
        ...
    }

c#
    public static class Host
    {
        public static HostApplicationBuilder CreateApplicationBuilder();
        ...
    }

c#
    public static class Host
    {
        public static HostApplicationBuilder CreateApplicationBuilder();
        ...
    }

Does the runtime contain implementations and resolve them dynamically at runtime? Where/How can I read the code for these functions then?