When studying the factory method, I saw a strange structure, what is it?

Question

C++ / C#

class Horseman: public Warrior
{
  public:    
    void info() { 
      cout << "Horseman" << endl; 
    }

Access modifier after class name, what does it mean? Or what is it called?

Answer 1

https://en.cppreference.com/w/cpp/language/class
https://en.cppreference.com/w/cpp/language/derived...