private static void FindNameAge(Student[] studentNames)
{
var stud =
from student in studentNames
where ((student.firstName.CompareTo(student.lastName) < 0) && (student.age >= 18) && (student.age <= 24))
select student;
foreach (var student in stud)
{
Console.WriteLine("{0} {1} {2}", student.firstName, student.lastName, student.age);
}
}
private static void FindName(Student[] studentNames)
{
var stud =
from stundent in studentNames
where (stundent.firstName.CompareTo(stundent.lastName) < 0)
select stundent;
foreach (var student in stud)
{
Console.WriteLine(student.firstName + " " + student.lastName);
}
}
static void Main()
{
Student[] studentNames = new Student[]{
new Student {firstName = "Georgi", lastName="Mollov", age=23},
new Student {firstName = "Galina", lastName="Grueva", age=12},
new Student {firstName = "Dimo", lastName="Nyagolow", age=44},
new Student {firstName ="Yana", lastName="Stoyanova", age=33},
new Student {firstName="Hristina", lastName="Petrova",age=21}
};
FindName(studentNames);
Console.WriteLine();
FindNameAge(studentNames);
Console.WriteLine();
OrderNames(studentNames);
}
private static void OrderNames(Student[] studentNames)
{
//lambda
var sortedStud = studentNames.OrderBy(student => student.firstName).ThenBy(student => student.lastName);
foreach (var student in sortedStud)
{
Console.WriteLine(string.Format("{0} {1} {2}", student.firstName, student.lastName, student.age));
}
//LINQ
//var sortedStud =
// from student in studentNames
// orderby student.firstName, student.lastName
// select student;
//foreach (var student in sortedStud)
//{
// Console.WriteLine("{0} {1} {2}", student.firstName, student.lastName, student.age);
//}
}
