public Enrolle(Enrolle existingEnrolle)
{
this.name = existingEnrolle.name;
this.age = existingEnrolle.age;
this.ctPoints = existingEnrolle.ctPoints;
counter++;
}
public override bool Equals(object obj)
{
if (obj == null)
{
return(false);
}
Enrolle enrolle = obj as Enrolle;
if (enrolle == null)
{
return(false);
}
return(enrolle.name == this.name && enrolle.age == this.age && enrolle.ctPoints == this.ctPoints);
}
static void Main(string[] args)
{
#region First Task
//string[] Months = { "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" };
//var n = 8;
////IEnumerable<string> month1 = from month in Months where month.Length == n select month;
//IEnumerable<string> month1 = Months.Where(month => month.Length == n).Select(month => month);
//foreach (var item in month1)
// Console.WriteLine(item);
//Console.WriteLine("-----------------------");
////IEnumerable<string> month2 = from month in Months where month.StartsWith("J") || month.StartsWith("F") || month.StartsWith("Au") || month.StartsWith("D") select month;
//IEnumerable<string> month2 = Months.Where(month => month.StartsWith("J") || month.StartsWith("F") || month.StartsWith("Au") || month.StartsWith("D")).Select(month => month);
//foreach (var item in month2)
// Console.WriteLine(item);
//Console.WriteLine("-----------------------");
////IEnumerable<string> month3 = from month in Months orderby month select month;
//IEnumerable<string> month3 = Months.OrderBy(month => month).Select(month => month);
//foreach (var item in month3)
// Console.WriteLine(item);
//Console.WriteLine("-----------------------");
////IEnumerable<string> month4 = from month in Months where month.Contains("u") && month.Length > 3 select month;
//IEnumerable<string> month4 = Months.Where(month => month.Contains("u") && month.Length > 3).Select(month => month);
//foreach (var item in month4)
// Console.WriteLine(item);
#endregion Task First
#region Task Second and Third
int[] marks1 = { 9, 9, 9, 9, 9 };
Enrolle man1 = new Enrolle("Max", 18, 344, marks1);
int[] marks2 = { 2, 5, 4, 3, 6 };
Enrolle man2 = new Enrolle("Dan", 19, 305, marks2);
int[] marks3 = { 10, 6, 8, 9, 6 };
Enrolle man3 = new Enrolle("Katya", 18, 318, marks3);
int[] marks4 = { 10, 10, 9, 9, 9 };
Enrolle man4 = new Enrolle("Dasha", 18, 287, marks4);
int[] marks5 = { 10, 3, 8, 9, 6 };
Enrolle man5 = new Enrolle("Pasha", 19, 300, marks5);
List <Enrolle> list = new List <Enrolle>();
list.Add(man1);
list.Add(man2);
list.Add(man3);
list.Add(man4);
list.Add(man5);
foreach (var item in list)
{
Console.WriteLine(item.ToString());
}
Console.WriteLine("-----------------");
//IEnumerable<Enrolle> querry1 = from item in list where item.marks.Min() < 4 select item;
////IEnumerable<Enrolle> querry1 = list.Select(marks => marks.marks).Select();
//foreach (var item in querry1)
// Console.WriteLine(item.ToString());
//Console.WriteLine("-----------------");
//var sum = 40;
////IEnumerable<Enrolle> querry2 = from item in list where item.marks.Sum() > sum select item;
//IEnumerable<Enrolle> querry2 = list.Where(man => man.marks.Sum() > sum).Select(man => man);
//foreach (var item in querry2)
// Console.WriteLine(item.ToString());
//Console.WriteLine("-----------------");
////IEnumerable<Enrolle> querry3 = from item in list where item.marks.Contains(10) select item;
//IEnumerable<Enrolle> querry3 = list.Where(man => man.marks.Contains(10)).Select(man => man);
//foreach (var item in querry3)
// Console.WriteLine(item.ToString());
//Console.WriteLine("-----------------");
////IEnumerable<Enrolle> querry4 = from item in list orderby item.name select item;
//IEnumerable<Enrolle> querry4 = list.OrderBy(man => man.name).Select(man => man);
//foreach (var item in querry4)
// Console.WriteLine(item.ToString());
//Console.WriteLine("-----------------");
////IEnumerable<Enrolle> querry5 = (from item in list orderby item.marks.Average() select item).Take(2);
//IEnumerable<Enrolle> querry5 = list.OrderBy(man => man.marks.Average()).Select(man => man).Take(2);
//foreach (var item in querry5)
// Console.WriteLine(item.ToString());
//Console.WriteLine("-----------------");
#endregion Task Second and Third
#region Task Fourth
var querry6 = from item in list where item.marks.Min() < 4 && item.marks.Contains(6) orderby item.Age group item by item.marks[0];
//IEnumerable<Enrolle> querry1 = list.Select(marks => marks.marks).Select();
foreach (var item in querry6)
{
Console.WriteLine(item.Key);
foreach (var man in item)
{
Console.WriteLine(man.ToString());
}
}
Console.WriteLine("-----------------");
#endregion Task Fourth
#region Task Fifth
int[] mass = { 18, 2, 3, 4, 5 };
var querry7 = from item in list join num in mass on item.Age equals num select new { Name = item.name, Num = num };
foreach (var item in querry7)
{
Console.WriteLine($"Name: {item.Name}\tNum: {item.Num}");
}
#endregion Task Fift
}