public static bool More18(CharacteristicStudent student)
{
if (student.Age >= 18)
{
return(true);
}
else
{
return(false);
}
}
public static bool LenghtLastName(CharacteristicStudent student)
{
if (student.LastName.Length > 3)
{
return(true);
}
else
{
return(false);
}
}
public static bool FirstLetter(CharacteristicStudent student)
{
if (student.FirstName.ToLower().Substring(0, 1) == "a")
{
return(true);
}
else
{
return(false);
}
}
private static void Main()
{
List <CharacteristicStudent> students = new List <CharacteristicStudent>()
{
new CharacteristicStudent()
{
FirstName = "Vlad", LastName = "Bahlai", Age = 18
},
new CharacteristicStudent()
{
FirstName = "Andrew", LastName = "Melnik", Age = 19
},
new CharacteristicStudent()
{
FirstName = "Vlad", LastName = "Chypys", Age = 20
},
new CharacteristicStudent()
{
FirstName = "Michael", LastName = "Yik", Age = 21
},
new CharacteristicStudent()
{
FirstName = "Nikolay", LastName = "Kariy", Age = 22
},
new CharacteristicStudent()
{
FirstName = "Fedor", LastName = "Bryzgalov", Age = 23
},
new CharacteristicStudent()
{
FirstName = "Alexandr", LastName = "Coder", Age = 14
},
new CharacteristicStudent()
{
FirstName = "Vitaliy", LastName = "Chypys", Age = 15
},
new CharacteristicStudent()
{
FirstName = "Maria", LastName = "Troelsen", Age = 16
},
new CharacteristicStudent()
{
FirstName = "Vika", LastName = "Troelsen", Age = 16
}
};
List <CharacteristicStudent> StudentsAge = students.FindStudent((student) => CharacteristicStudent.More18(student));
Console.WriteLine("Students age more 17 := ");
foreach (CharacteristicStudent student in StudentsAge)
{
Console.WriteLine("FirstName - {0}, LastName - {1}, Age - {2}", student.FirstName, student.LastName, student.Age);
}
List <CharacteristicStudent> StudentsFirstName = students.FindStudent((student) => CharacteristicStudent.FirstLetter(student));
Console.WriteLine("Students with first letter A :=");
foreach (CharacteristicStudent student in StudentsFirstName)
{
Console.WriteLine("FirstName - {0}, LastName - {1}, Age - {2}", student.FirstName, student.LastName, student.Age);
}
List <CharacteristicStudent> foundStudentsLastName = students.FindStudent((student) => CharacteristicStudent.LenghtLastName(student));
Console.WriteLine("Students with last name more then 3 letters :=");
foreach (CharacteristicStudent student in foundStudentsLastName)
{
Console.WriteLine("FirstName - {0}, LastName - {1}, Age - {2}", student.FirstName, student.LastName, student.Age);
}
List <CharacteristicStudent> StudentsAndrew = students.FindStudent((student) => student.FirstName == "Andrew");
Console.WriteLine("Students with first name Andrew :=");
foreach (CharacteristicStudent student in StudentsAndrew)
{
Console.WriteLine("FirstName - {0}, LastName - {1}, Age - {2}", student.FirstName, student.LastName, student.Age);
}
List <CharacteristicStudent> StudentsTroelsen = students.FindStudent((student) => student.LastName == "Troelsen");
Console.WriteLine("Students with last name Troelsen :=");
foreach (CharacteristicStudent student in StudentsTroelsen)
{
Console.WriteLine("FirstName - {0}, LastName - {1}, Age - {2}", student.FirstName, student.LastName, student.Age);
}
Console.ReadKey();
}