static void Main(string[] args)
{
JuniorStudent jns = new JuniorStudent();
jns.Name = "PEsjo";
Console.WriteLine(jns.GetAllCourses());
ISet<string> str = new SortedSet<string>();
str.Add("mmamdq");
str.Add("mmqmy");
str.Add("ad1");
str.Add("addd1");
str.Add("addd");
str.Add("add2");
str.Add("53df");
foreach (var item in str)
{
Console.WriteLine(item);
}
}
public static void Main()
{
JuniorStudent jns = new JuniorStudent();
//jns.Name = null; // this will cause System.ArgumentException: Name cannot be empty
try
{
jns.Name = null;
}
catch (ArgumentNullException)
{
Console.WriteLine("You entered empty or null name");
}
//jns.Name = "Ivan";
Console.WriteLine(jns.GetAllCourses());
// this is not the right way to add marks (by fictive list):
//jns.Marks.Add(50);
//jns.Marks.Add(100);
// the right interface for adding is:
jns.AddMark(50);
jns.AddMark(100);
Console.WriteLine(jns);
jns.Marks.Clear(); // we don't want someone to clear the marks, so we encapsulate the data in class JuniorStudent
Console.WriteLine(jns);
IEnumerable <string> enumerable = new List <string>(); //using System.Collections.Generic;
IEnumerable <string> hashset = new HashSet <string>(); //using System.Collections.Generic;
// List and HashSet can be foreach... because there are from same interface
ISet <string> set = new SortedSet <string>();
ISet <string> anotherSet = new HashSet <string>();
// SortedSet and HashSet implement ISet<T> and have same methods
}