static void Main(string[] args)
{
//Problem 9. Student groups
Student s1 = new Student("Noe", "Aionesei", 123406, 0700225588, "*****@*****.**", 2);
s1.AddMark(9.5);
s1.AddMark(8);
s1.AddMark(6);
s1.AddMark(10);
Student s2 = new Student("Diana", "Balea", 543212, 0722991177, "*****@*****.**", 1);
s2.AddMark(6);
s2.AddMark(7);
s2.AddMark(10);
s2.AddMark(10);
Student s3 = new Student("Alex", "Constantin", 987406, 0711232323, "*****@*****.**", 1);
s3.AddMark(2);
s3.AddMark(8.5);
s3.AddMark(2);
s3.AddMark(9);
Student s4 = new Student("Sia", "Naomi", 939316, 0722667722, "*****@*****.**", 2);
s4.AddMark(8);
s4.AddMark(6);
s4.AddMark(10);
s4.AddMark(9);
var listaStudenti = new List <Student>();
listaStudenti.Add(s1);
listaStudenti.Add(s2);
listaStudenti.Add(s3);
listaStudenti.Add(s4);
foreach (var stud in listaStudenti)
{
stud.PrintStudentDetails();
}
var queryGroupNumber = listaStudenti.FindAll(s => s.GroupNumber == 2);
foreach (var stud in queryGroupNumber)
{
stud.PrintStudentDetails();
}
var queryFirstName =
from stud in listaStudenti
orderby stud.FirstName
select stud;
foreach (var stud in queryFirstName)
{
stud.PrintStudentDetails();
}
//Problem 13. Extract students by marks
var queryMark =
from stud in listaStudenti
where stud.Marks.Contains(6)
select stud;
foreach (var stud in queryMark)
{
stud.PrintStudentDetails();
}
//Problem 14. Extract students with two marks
var queryMarks = listaStudenti.FindAll(x => x.Marks.Count(y => y == 2) == 2);
foreach (var stud in queryMarks)
{
stud.PrintStudentDetails();
}
//Problem 15. Extract marks
Console.WriteLine($"All Marks of the students that enrolled in 2006 : ");
var queryEnrolled =
from stud in listaStudenti
where stud.FN.ToString().EndsWith("06")
select stud;
foreach (var stud in queryEnrolled)
{
stud.PrintStudentDetails();
}
//Problem 18. Grouped by GroupNumber
Console.WriteLine($"All the students from group 1 : ");
var queryFirstGroup =
from stud in listaStudenti
where stud.GroupNumber.Equals(1)
select stud;
foreach (var stud in queryFirstGroup)
{
stud.PrintStudentDetails();
}
Console.WriteLine($"-------------------------------");
Console.WriteLine($"All the students from group 2 : ");
var querySecondGroup =
from stud in listaStudenti
where stud.GroupNumber.Equals(2)
select stud;
foreach (var stud in querySecondGroup)
{
stud.PrintStudentDetails();
}
Console.ReadKey();
}
static void Main()
{
Student[] studentsArray = new Student[] {
new Student("Gosho", "Toshev", "111106", "027734565", "*****@*****.**", new List<int> {6,5,3}, 1),
new Student("Dimitar", "Vasilev", "22222", "0894445566", "*****@*****.**", new List<int> {2,2,4}, 2),
new Student("Vasil", "Dimitrov", "333306", "085552221", "*****@*****.**", new List<int> {4,6,6}, 1),
new Student("Jeliazko", "Momchilov", "44444", "029990033", "*****@*****.**", new List<int> {5,5}, 2),
new Student("Damyan", "Petrov", "555506", "0877788665", "*****@*****.**", new List<int> {3,4,6}, 1)};
var SecondGroup =
studentsArray.Where(student => student.GroupNumber == 2).OrderBy(student => student.FirstName);
foreach (var student in SecondGroup)
{
Console.WriteLine(student.FirstName + " " + student.LastName);
}
Console.WriteLine(new string('=', 30));
var LINQSecondGroup =
from student in studentsArray
where student.GroupNumber == 2
orderby student.FirstName
select student;
foreach (var student in LINQSecondGroup)
{
Console.WriteLine(student.FirstName + " " + student.LastName);
}
Console.WriteLine(new string('=', 30));
//var StudentsByEmail =
// studentsArray.Where(student => student.Email.Contains("@abv.bg"));
var StudentsByEmail =
from student in studentsArray
where student.Email.Contains("@abv.bg")
select student;
foreach (var student in StudentsByEmail)
{
Console.WriteLine(student.FirstName + " " + student.LastName);
}
Console.WriteLine(new string('=', 30));
//var TelsInSofia =
// studentsArray.Where(student => student.Tel.StartsWith("02"));
var TelsInSofia =
from student in studentsArray
where student.Tel.StartsWith("02")
select student;
foreach (var student in TelsInSofia)
{
Console.WriteLine(student.FirstName + " " + student.LastName);
}
Console.WriteLine(new string('=', 30));
var StudentsByMark =
from student in studentsArray
where student.Marks.Contains(6)
select new
{
FullName = student.FirstName + " " + student.LastName,
Marks = student.Marks
};
foreach (var student in StudentsByMark)
{
Console.WriteLine(student.FullName);
}
Console.WriteLine(new string('=', 30));
var StudentsTwoMarks =
studentsArray.Where(student => student.Marks.FindAll(m => m == 2).Count == 2)
.Select(student => new
{
FullName = student.FirstName + " " + student.LastName,
Marks = student.Marks
});
foreach (var student in StudentsTwoMarks)
{
Console.WriteLine(student.FullName);
}
Console.WriteLine(new string('=', 30));
var MarksOf2006Students =
from student in studentsArray
where student.FN[4] == '0' && student.FN[5] == '6'
select student;
List<int> marks = new List<int>();
foreach (var student in MarksOf2006Students)
{
marks.AddRange(student.Marks);
}
Console.WriteLine(string.Join(", ", marks));
}
