static void Main(string[] args)
{
Car initCar = Car.Init();
CarSalesBook carSalesBook = new CarSalesBook();
CarDataFileReader cdfr = new CarDataFileReader();
var cars = cdfr.top3Sales();
foreach (var car in cars)
{
Console.WriteLine(car);
}
Console.ReadLine();
}
static void Task2()
{
CarSalesBook carSalesBook = new CarSalesBook();
var cars = carSalesBook.ReadCarsFromFile();
Console.WriteLine("Which are TOP 3 makes whose sales with regard to the amount of sold cars in 2014?");
PrintMakes(cars.OrderBy(car => - car.Sales2014).Take(3));
Console.WriteLine("\nThe sales of which makes increased by at least 50% in 2015 comparing to 2014?");
PrintMakes(cars.Where(car => car.Sales2015 >= 1.5 * car.Sales2014));
Console.WriteLine("\nWhich 3 makes opens the second ten of the sales ranking in 2015");
PrintMakes(cars.OrderBy(car => - car.Sales2015).Skip(10).Take(3));
Console.WriteLine("\nWhat are the totals of sold cars in 2014 and 2015");
Console.WriteLine("Total 2014: " + cars.Sum(n => n.Sales2014));
Console.WriteLine("Total 2015: " + cars.Sum(n => n.Sales2015));
Console.WriteLine("Total 2014 and 2015: " + (cars.Sum(n => n.Sales2014) + cars.Sum(n => n.Sales2015)));
Console.WriteLine("\nCreate a list that contains TOP10 and LAST 10 cars with respect to sales in 2015.");
IEnumerable <Car> result = cars.OrderBy(car => - car.Sales2015).Take(10).Union(
cars.OrderBy(car => - car.Sales2015).Reverse().Take(10).Reverse());
PrintMakes(result);
string path = @"..\..\cars.xml";
SaveToXML(result, path);
Console.WriteLine("\nSaved results from previous query to XML.");
Console.WriteLine("\nLoaded cars from XML:");
List <Car> loadedCars = ReadFromXML(path);
PrintMakes(loadedCars);
}
static void Main(string[] args)
{
CarSalesBook carSalesBook = new CarSalesBook();
Func <int, Boolean> isLeapYear = year => (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0));
Console.WriteLine("2014 is a leap year: {0:B}", isLeapYear(2014));
Console.WriteLine("2016 is a leap year: {0:B}", isLeapYear(2016));
var testCollection = new MyCollection <String>();
Console.WriteLine("Collection is empty: {0:B}", testCollection.isEmpty());
testCollection.Add("test");
testCollection.Add("test2");
testCollection.Add("test3");
Console.WriteLine("Get 3rd element: {0:S}", testCollection.Get(2));
Console.WriteLine("Get 3rd element: {0:S}", testCollection.Get(2));
Console.WriteLine("Collection is empty: {0:B}", testCollection.isEmpty());
Process[] allProcesses = Process.GetProcesses();
allProcesses.PrintProcessesInfo();
Console.ReadLine();
}
static void Main(string[] args)
{
CarSalesBook carSalesBook = new CarSalesBook();
carSalesBook._cars = carSalesBook.ReadCarsFromFile();
/*
* foreach (var item in carSalesBook._cars)
* {
* Console.WriteLine(item.Make);
* }
*/
//Top 3
var top3 = (from item in carSalesBook._cars
orderby item.Sales2014 descending
select item).Take(3);
//least50%
var least50 = from item in carSalesBook._cars
where item.Sales2015 >= item.Sales2014 * 1.5
select item;
//3makesOpens
var makesOpens = (from item in carSalesBook._cars
orderby item.Sales2015 descending
select item).Skip(10).Take(3);
//total
var total = from item in carSalesBook._cars
group item by 1
into g
select new
{
SumTotal = g.Sum(x => x.Sales2014),
SumDone = g.Sum(x => x.Sales2015)
};
//top10last10
var tmp = from item in carSalesBook._cars
orderby item.Sales2015 descending
select item;
var top10last10 = tmp.Take(10).Concat(tmp.Skip(Math.Max(0, tmp.Count() - 10)));
//saveToXML
var filename = "save.xml";
var currentDirectory = Directory.GetCurrentDirectory();
var filepath = Path.Combine(currentDirectory, filename);
var xml = new XElement("Cars", carSalesBook._cars.Select(x => new XElement("Car",
new XElement("Make", x.Make),
new XElement("Sales2014", x.Sales2014),
new XElement("Sales2015", x.Sales2015))));
xml.Save(filepath);
//loadFromXML
XElement loadingElement = XElement.Load(filepath);
var carsLoad = from item in loadingElement.Descendants("Car")
select item;
/*
* foreach (var row in carsLoad)
* {
* Console.WriteLine(row.Element("Make").Value + ", " + row.Element("Sales2014").Value + ", " + row.Element("Sales2015").Value);
* }
*/
/*
* List<Process> list = new List<Process>();
* var proc1 = Process.Start("https://www.google.com");
* list.Add(proc1);
* Console.WriteLine(list.MemorySum());
*/
//leap year method
Func <int, bool> leapYear = x => (x % 4) == 0;
Console.WriteLine(leapYear(2001));
/*
* OwnGenericCollection<String> ogc = new OwnGenericCollection<string>();
* Console.WriteLine(ogc.IsEmpty());
* ogc.Add("1");
* ogc.Add("2");
* ogc.Add("3");
* ogc.Add("4");
* ogc.Add("5");
* Console.WriteLine(ogc.Get(0));
* Console.WriteLine(ogc.Get(4));
* Console.WriteLine(ogc.IsEmpty());
*/
Console.ReadLine();
}
static void Main(string[] args)
{
CarSalesBook carSalesBook = new CarSalesBook();
IEnumerable <Car> top3Sales2014 = carSalesBook.Cars.OrderByDescending(c => c.Sales2014).Take(3);
Console.WriteLine(" ---- Solution for TOP 3 makes whose sales with regard to the amount of sold cars in 2014(2.4) ---- ");
foreach (Car c in top3Sales2014)
{
Console.WriteLine(c.Make);
}
Console.WriteLine("----------------------------------------------------------------------------------------------");
Console.WriteLine(" ---- Solution for the sales of which makes increased by at least 50% in 2015 comparing to 2014(2.5) ---- ");
IEnumerable <Car> salesOfMakesIncreasedInComparison2015to2014 = carSalesBook.Cars.Where(c => c.Sales2015 >= 1 * c.Sales2014 + 0.5 * c.Sales2014);
foreach (Car c in salesOfMakesIncreasedInComparison2015to2014)
{
Console.WriteLine(c.Make);
}
Console.WriteLine("----------------------------------------------------------------------------------------------");
Console.WriteLine(" ---- Solution for which 3 makes opens the second ten of the sales ranking in 2015(2.6) ---- ");
IEnumerable <Car> salesFirst3SecondTOP10 = carSalesBook.Cars.OrderByDescending(c => c.Sales2015).Skip(10).Take(3);
foreach (Car c in salesFirst3SecondTOP10)
{
Console.WriteLine(c.Make);
}
Console.WriteLine("----------------------------------------------------------------------------------------------");
Console.WriteLine(" ---- Solution for what are the totals of sold cars in 2014 and 2015(2.7) ---- ");
int soldCarsInTotalIn2014 = carSalesBook.Cars.Sum(c => c.Sales2014);
int soldCarsInTotalIn2015 = carSalesBook.Cars.Sum(c => c.Sales2015);
Console.WriteLine("Totals of sold cars in 2014 are {0}.\n Totals of sold cars in 2015 are {1}.",
soldCarsInTotalIn2014, soldCarsInTotalIn2015);
Console.WriteLine("----------------------------------------------------------------------------------------------");
Console.WriteLine(" ---- Solution for create a list that contains TOP10 and LAST 10 cars with respect to sales in 2015(2.8) ---- ");
var query = carSalesBook.Cars.OrderByDescending(c => c.Sales2015).Take(10);
var query2 = carSalesBook.Cars.OrderByDescending(c => c.Sales2015).Reverse().Take(10);
IEnumerable <Car> listTop10Last10In2015 = query.ToList <Car>();
listTop10Last10In2015 = listTop10Last10In2015.Concat(query2.ToList <Car>());
foreach (Car c in listTop10Last10In2015)
{
Console.WriteLine(c.Make);
}
Console.WriteLine("----------------------------------------------------------------------------------------------");
Console.WriteLine(" ---- Solution for (2.9) ---- ");
carSalesBook.WriteToXMLFile();
Console.WriteLine("The results have been saved to an XML file.");
Console.WriteLine("----------------------------------------------------------------------------------------------");
Console.WriteLine(" ---- Solution for (2.10) ---- ");
carSalesBook.ReadFromXMLFile();
Console.WriteLine("----------------------------------------------------------------------------------------------");
Console.ReadLine();
}
static void Main(string[] args)
{
// Task 1.7
Car car7 = new Car("Toyota")
{
NumberOfSeats = null
};
int numOfSeats = car7.NumberOfSeats ??= 0;
Console.WriteLine("noSeats: " + numOfSeats);
Console.WriteLine();
// tests
CarSalesBook book = new CarSalesBook();
Console.WriteLine("1st car from hand is: " + book.CarsFromHand[0].Make);
Console.WriteLine("2nd car from csv is: " + book.CarsFromCsv[1].Make);
// Task 2
// 2.4
IList <Car> query4 = (
from car in book.CarsFromCsv
orderby car.Sales2014 descending
select car
)
.Take(5)
.ToList();
// 2.5
IList <Car> query5 = (
from car in book.CarsFromCsv
where car.Sales2015 >= 1.5 * car.Sales2014
select car
)
.ToList();
// 2.6
IList <Car> query6 = (
from car in book.CarsFromCsv
orderby car.Sales2015 descending
select car
)
.Skip(10)
.Take(3)
.ToList();
// 2.7
int sum = book.CarsFromCsv.Sum(car => car.Sales2014)
+ book.CarsFromCsv.Sum(car => car.Sales2015);
// 2.8
var tmp = (
from car in book.CarsFromCsv
orderby car.Sales2015 descending
select car
);
IList <Car> query8 =
tmp
.Take(10)
.Concat(
tmp
.Skip(Math.Max(0, tmp.Count() - 10)))
.ToList();
//saveToXML
var currentDirectory = Directory.GetCurrentDirectory();
var filepath = Path.Combine(currentDirectory, "saved_cars.xml");
var xml = new XElement("Cars",
from car in book.CarsFromCsv
select new XElement("Car",
new XElement("Make", car.Make),
new XElement("Sales2014", car.Sales2014),
new XElement("Sales2015", car.Sales2015)
));
xml.Save(filepath);
//loadFromXML
XElement loadXML = XElement.Load(filepath);
IList <Car> cars = loadXML
.Descendants("Car")
.Select(car => new Car(car.Element("Make").Value)
{
Sales2014 = Convert.ToInt32(car.Element("Sales2014").Value),
Sales2015 = Convert.ToInt32(car.Element("Sales2015").Value)
})
.ToList();
}