//order by first then last name using lambda
static void OrderBy(Student[] students)
{
var sorted=students.OrderBy(student => student.firstName).ThenBy(student => student.lastName);
foreach (var student in sorted)
{
Console.WriteLine(student.firstName + " " + student.lastName);
}
}
// order be first then last name using LINQ
static void OrderByLINQ(Student[] students)
{
var sorted = from student in students
orderby student.firstName, student.lastName
select student;
foreach (var student in sorted)
{
Console.WriteLine(student.firstName + " " + student.lastName);
}
}
//find students with age between 18 and 24
public static void FindBetween18and24(Student[] students)
{
var arr = from student in students
where student.age>18 && student.age<24
select student;
foreach (var student in arr)
{
Console.WriteLine(student.firstName + " " + student.lastName);
}
}
//find students whose first name is before its last name alphabetically
public static void Find(Student[] students)
{
var arr=from student in students
where student.firstName.CompareTo(student.lastName) == -1
select student;
foreach (var student in arr)
{
Console.WriteLine(student.firstName + " "+ student.lastName);
}
}