How to pass default data from one class to another?

Question

C++ / C#

I can't pass data from one default class constructor to another.
Here is the code of the first class to pass to:

internal class Airplane
    {
        protected string StartCity;
        protected string FinishCity; 
        protected Date StartDate;
        protected Date FinishDate;

        
        public Airplane()
        {
            StartCity = "London";
            FinishCity = "Lviv";
            StartDate = new Date(2222,12,4,12,42);
            FinishDate = new Date(2222,12,5,6,12);
        }
        public Airplane(string startCity, string finishCity)
        {
            StartCity = startCity;
            FinishCity = finishCity;
        }
      
        public Airplane(Airplane obj)
        {
            StartCity=obj.StartCity;
            FinishCity=obj.FinishCity;
            StartDate = new Date(obj.StartDate);
            FinishDate = new Date(obj.FinishDate);
        }
    }

Here is the code for another class:

internal class Date
    {
        protected int Year; 
        protected int Month;
        protected int Day;
        protected int Hours;
        protected int Minutes;

      
        public Date()
        {
            Year = 2022;
            Month = 1;
            Day = 11;
            Hours = 12;
            Minutes = 20;
        }
        public Date(int year, int month, int day, int hours, int minutes)
        {
            Year = year;
            Month = month;
            Day = day; ;
            Hours = hours;
            Minutes = minutes;
        }
      
        public Date(Date obj)
        {
            this.Year = obj.Year;
            this.Month = obj.Month;
            this.Day = obj.Day;
            this.Hours = obj.Hours;
            this.Minutes = obj.Minutes;
        }
    }

Answer 1

When you try to display on the screen, you do not display the date and the class itself, since you do not have a method for displaying it on the screen. To facilitate the task, I suggest you make a method of the PrintInfo () type that will print all the necessary data of this class to the screen when called