static void Main()
{
Random rand = new Random();
Student[] students = new Student[10];
string[] firstNames = new string[] { "Niki", "Doncho", "Pesho", "Maria", "Stamat", "Ivan", "Ivo", "Gosho", "Evlogi", "Svetlin" };
string[] lastNames = new string[] { "Kostov", "Minkov", "Peshev", "Ivanov", "Stamatov", "Popov", "Kenov", "Goshev", "Hristov", "Nakov" };
for (int i = 0; i < students.Length; i++)
{
string firstName = firstNames[rand.Next(0, 10)];
string lastName = lastNames[rand.Next(0, 10)];
uint grade = (uint)rand.Next(1, 5);
Student student = new Student(firstName, lastName, grade);
students[i] = student;
}
Console.WriteLine("STUDENTS");
var studentsByGrade = students.OrderBy(st => st.Grade).ToList();
foreach (var student in studentsByGrade)
{
Console.WriteLine("{0} {1}, grade --> {2}", student.FirstName, student.LastName, student.Grade);
}
Worker[] workers = new Worker[10];
for (int i = 0; i < workers.Length; i++)
{
string firstName = firstNames[rand.Next(0, 10)];
string lastName = lastNames[rand.Next(0, 10)];
decimal weekSalary = (decimal)rand.Next(100, 200);
Worker worker = new Worker(firstName, lastName, weekSalary, 8);
workers[i] = worker;
}
Console.WriteLine("WORKERS");
var workersByHourMoney = workers.OrderByDescending(w => w.MoneyPerHour()).ToList();
foreach (var worker in workersByHourMoney)
{
Console.WriteLine("{0} {1} --> {2} money per hour", worker.FirstName, worker.LastName, worker.MoneyPerHour());
}
var mergedList = students.Union<Human>(workers).OrderBy(h => h.FirstName).ThenBy(h => h.LastName);
Console.WriteLine("HUMANS LIST");
foreach (var human in mergedList)
{
string type = human.GetType().Name;
Console.WriteLine("{0} {1} type --> {2}", human.FirstName, human.LastName, type);
}
}
static void Main()
{
Student[] students = new Student[]
{
new Student("Ivan", "Petrov", 5.50),
new Student("Alex", "Simeonov", 2.75),
new Student("Iskra", "Radeva", 5.84),
new Student("Dani", "Kostov", 6.00),
new Student("Dimo", "Dimov", 2.25),
new Student("Silviya", "Eneva", 4.33),
new Student("Oleg", "Harizanov", 3.44),
new Student("Nikolay", "Tzonkov", 2.87),
new Student("Viki", "Nikolova", 4.92),
new Student("Yanko", "Yankov", 5.12)
};
Worker[] workers = new Worker[]
{
new Worker("Bistra", "Pavlova", 258.25m, 10),
new Worker("Veni", "Tasheva", 1020.80m, 8),
new Worker("Daniel", "Elenov", 140.65m, 6),
new Worker("Angel", "Angelov", 940.48m, 7),
new Worker("Jivko", "Denchev", 680.58m, 9),
new Worker("Rosi", "Yankova", 240m, 14),
new Worker("Rumen", "Zaimov", 315.68m, 18),
new Worker("Georgi", "Borukov", 110.80m, 2),
new Worker("Oleg", "Pavlov", 500m, 5),
new Worker("Vanya", "Vencheva", 190.38m, 12),
};
//sorting students by marks ascending using LINQ
var sortStudents = from st in students
orderby st.Grade
select st;
foreach (var st in sortStudents)
{
Console.WriteLine(st);
}
Console.WriteLine();
//the same using extension methods
var sortedStud = students.OrderBy(st => st.Grade);
foreach (var st in sortedStud)
{
Console.WriteLine(st);
}
Console.WriteLine();
//sorting workers by money per hour in descending order
var sortWorkers = from wks in workers
orderby wks.MoneyPerHour() descending
select wks;
foreach (var wrk in sortWorkers)
{
Console.WriteLine(wrk);
}
Console.WriteLine();
//the same task using extension methods
var sortedWorkers = workers.OrderByDescending(wrk => wrk.MoneyPerHour());
foreach (var worker in sortedWorkers)
{
Console.WriteLine(worker);
}
Console.WriteLine();
//merging the lists and sorting them by first name and last name
var merged = students.Concat<Human>(workers).OrderBy(hm => hm.FirstName).ThenBy(hm => hm.LastName);
foreach (var human in merged)
{
Console.WriteLine(human.FirstName +" "+ human.LastName);
}
}
