What does symbol : mean in c#?

Question

C++ / C#

Hello everyone! I just started learning c#, I watch all sorts of workshops, I read articles on this topic. I came across this code

public Point(string name)
            : this(300, 400)

Can you please tell me what the colon symbol means in this section of code?

Answer 1

Calling another constructor in this case, or declaring inherited interface classes

Answer 2

https://docs.microsoft.com/en-us/dotnet/csharp/pro...