static void Main(string[] args)
{
// ========================
var months = new string[12] {
"June", "July", "August", "September", "October", "November", "December", "January", "February", "March", "April", "May"
};
int n = 4;
var monthsWithLength = from x in months
where x.Length == n
select x;
foreach (var word in monthsWithLength)
{
Console.Write(word + " ");
}
Console.WriteLine();
var monthsSummerAndWinter = months.Take(3).Union(months.Skip(6).Take(3));
foreach (var word in monthsSummerAndWinter)
{
Console.Write(word + " ");
}
Console.WriteLine();
var monthsSorted = from x in months
orderby x
select x;
foreach (var word in monthsSorted)
{
Console.Write(word + " ");
}
Console.WriteLine();
var monthsWithLetterAndLength = (from x in months where x.Length >= 4 select x).Intersect(from x in months where x.Contains('u') select x);
foreach (var word in monthsWithLetterAndLength)
{
Console.Write(word + " ");
}
Console.WriteLine();
// ========================
var cars = new List <Car>();
cars.Add(new Car(0, "Tesla", "S", 2020, 200, "AAAA0", "red"));
cars.Add(new Car(1, "Tesla", "X", 2015, 100, "AAAA1", "red"));
cars.Add(new Car(2, "Tesla", "Y", 2017, 150, "AAAA2", "blue"));
cars.Add(new Car(3, "Volvo", "XC90", 2020, 80, "AAAA3", "red"));
cars.Add(new Car(4, "Volvo", "XC60", 2019, 50, "AAAA4", "red"));
cars.Add(new Car(5, "ImagineCars", "ImaginableModel1", 2016, 50, "AAAA5", "blue"));
cars.Add(new Car(6, "ImagineCars", "ImaginableModel1", 2017, 55, "AAAA6", "rainbow"));
cars.Add(new Car(7, "ImagineCars", "ImaginableModel1", 2018, 60, "AAAA7", "rainbow"));
cars.Add(new Car(8, "ImagineCars", "ImaginableModel2", 2019, 150, "AAAA8", "red"));
var carsOfBrand = cars.Where(x => x.Brand == "Tesla");
foreach (var car in carsOfBrand)
{
Console.Write(car + " ");
}
Console.WriteLine();
var model = "ImaginableModel1";
var carsOfModelAndAge = (cars.Where(x => x.Model == model)).Intersect(cars.Where(x => x.Age > 2));
foreach (var car in carsOfModelAndAge)
{
Console.Write(car + " | ");
}
Console.WriteLine();
Console.WriteLine();
var carsOfColorAndPrice = (cars.Where(x => x.Color == "red")).Intersect(cars.Where(x => x.Price > 60 && x.Price < 150)).Count();
Console.WriteLine("Cars of red (60,150)$: " + carsOfColorAndPrice);
Console.WriteLine("First Oldest Car: " + cars.Where(x => x.Production_year == cars.Min(x => x.Production_year)).First());
var newestCars = cars.OrderBy(x => x.Age).Take(5);
foreach (var car in newestCars)
{
Console.Write(car + " | ");
}
Console.WriteLine();
Console.WriteLine();
var carsSortedByPirce = cars.OrderBy(x => x.Price);
foreach (var car in carsSortedByPirce)
{
Console.Write(car + " | ");
}
Console.WriteLine();
Console.WriteLine();
var task4 = (((from x in months where x.Length > 3 select x)).Skip(3).
Intersect(from x in months where x.Contains("u") select x)).
Count();
var log = new LogRecord[]
{
new LogRecord("Action 1", "Action"),
new LogRecord("Action 2", "Action"),
new LogRecord("Event 1", "Event"),
new LogRecord("Exception 1", "Exception"),
new LogRecord("Exception 2", "Exception"),
new LogRecord("Error 1", "Error"),
new LogRecord("Error 2", "Error")
};
var attentionLevel = new AttentionLevel[]
{
new AttentionLevel((LogType)0, "Regular"),
new AttentionLevel((LogType)1, "Regular"),
new AttentionLevel((LogType)2, "Warning"),
new AttentionLevel((LogType)3, "Error"),
};
var mergedLog = log.Join(attentionLevel, a => a.type, b => b.type, (a, b) => new { attentionLevel = b.level, desc = a.desc });
foreach (var elem in mergedLog)
{
Console.WriteLine(string.Format("[{0}] {1}", elem.attentionLevel, elem.desc));
}
Console.WriteLine();
}
static void Main(string[] args)
{
//1.
var months = new string[12] {
"June", "July", "August", "September", "October", "November", "December", "January", "February", "March", "April", "May"
};
int n = 4;
var monthsWithLength = from x in months
where x.Length == n
select x;
foreach (var word in monthsWithLength)
{
Console.Write(word + " ");
}
Console.WriteLine();
var monthsSummerAndWinter = months.Take(3).Union(months.Skip(6).Take(3));
foreach (var word in monthsSummerAndWinter)
{
Console.Write(word + " ");
}
Console.WriteLine();
var monthsSorted = from x in months
orderby x
select x;
foreach (var word in monthsSorted)
{
Console.Write(word + " ");
}
Console.WriteLine();
var monthsWithLetterAndLength = (from x in months where x.Length >= 4 select x).Intersect(from x in months where x.Contains('u') select x);
foreach (var word in monthsWithLetterAndLength)
{
Console.Write(word + " ");
}
Console.WriteLine();
//2.
var abiturients = new List <Abiturient>();
abiturients.Add(new Abiturient(0, "Иванов", "Иван", 2, 2019, 7778899, 7, 7, 7, 7));
abiturients.Add(new Abiturient(1, "Петров", "Петр", 2, 2019, 1112233, 6, 5, 3, 4));
abiturients.Add(new Abiturient(2, "Ермолович", "Леонид", 3, 2018, 1234567, 8, 9, 5, 7));
abiturients.Add(new Abiturient(3, "Филатова", "Юля", 1, 2020, 9998877, 10, 9, 9, 8));
abiturients.Add(new Abiturient(4, "Петухов", "Кирилл", 2, 2019, 3334455, 4, 3, 5, 7));
abiturients.Add(new Abiturient(5, "Виннов", "Виктор", 4, 2017, 5641287, 9, 9, 8, 9));
abiturients.Add(new Abiturient(6, "Шмурадко", "Кристина", 4, 2017, 3452678, 10, 10, 9, 10));
abiturients.Add(new Abiturient(7, "Савритская", "Алина", 2, 2019, 7682435, 3, 5, 6, 7));
abiturients.Add(new Abiturient(8, "Орлова", "Полина", 1, 2020, 1111122, 6, 4, 5, 3));
var abiturientBadMarks = abiturients.Where(x => x.Marks0 == 3);
abiturientBadMarks = abiturients.Where(x => x.Marks1 == 3);
abiturientBadMarks = abiturients.Where(x => x.Marks2 == 3);
abiturientBadMarks = abiturients.Where(x => x.Marks3 == 3);
foreach (var abiturient in abiturientBadMarks)
{
Console.Write(abiturient + " | ");
}
Console.WriteLine();
var abiturientSredMarks = abiturients.Where(x => x.SummMarks > 29);
foreach (var abiturient in abiturientSredMarks)
{
Console.Write(abiturient + " | ");
}
Console.WriteLine();
int counter = 0;
var abiturientWithTen = abiturients.Where(x => x.Marks3 == 10);
foreach (var abiturient in abiturientWithTen)
{
Console.Write($"{counter}. " + abiturient + " | ");
counter++;
}
Console.WriteLine();
var abiturientSortBySurname = abiturients.OrderByDescending(x => x.Surname);
foreach (var abiturient in abiturientSortBySurname)
{
Console.Write(abiturient + " | ");
}
Console.WriteLine();
var abiturientWorst = abiturients.OrderBy(x => x.SummMarks).TakeLast(4);
foreach (var car in abiturientWorst)
{
Console.Write(car + " | ");
}
Console.WriteLine();
var task4 = (((from x in months where x.Length > 3 select x)).Skip(3).
Intersect(from x in months where x.Contains("u") select x)).
Count();
var log = new LogRecord[]
{
new LogRecord("Action 1", "Action"),
new LogRecord("Action 2", "Action"),
new LogRecord("Event 1", "Event"),
new LogRecord("Exception 1", "Exception"),
new LogRecord("Exception 2", "Exception"),
new LogRecord("Error 1", "Error"),
new LogRecord("Error 2", "Error")
};
var attentionLevel = new AttentionLevel[]
{
new AttentionLevel((LogType)0, "Regular"),
new AttentionLevel((LogType)1, "Regular"),
new AttentionLevel((LogType)2, "Warning"),
new AttentionLevel((LogType)3, "Error"),
};
var mergedLog = log.Join(attentionLevel, a => a.type, b => b.type, (a, b) => new { attentionLevel = b.level, desc = a.desc });
foreach (var elem in mergedLog)
{
Console.WriteLine(string.Format("[{0}] {1}", elem.attentionLevel, elem.desc));
}
Console.WriteLine();
}