private static void Main(string[] args)
{
string filePath = @"C:\...\Pop by Largest Final.csv";
CsvReader reader = new CsvReader(filePath);
List <Country> countries = reader.ReadAllCountries();
Country lilliput = new Country("Lilliput", "LIL", "Somewhere", 2_000_000);
int lilliputIndex = countries.FindIndex(x => x.Population < 2_000_000);
countries.Insert(lilliputIndex, lilliput);
countries.RemoveAt(lilliputIndex);
//foreach (Country country in countries)
//foreach (Country country in countries.Take(10))
//foreach (Country country in countries.OrderBy(x=>x.Name).Take(1000))
//foreach (Country country in countries.Where(x => !x.Name.Contains(',')).Take(20))
var filteredCountries = countries.Where(x => !x.Name.Contains(',')); //.Take(20);
var filteredCountries2 = from country in countries
where !country.Name.Contains(',')
select country;
foreach (Country country in filteredCountries2)
{
Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
}
for (int i = 12; i <= 14; i++)
{
Console.WriteLine($"index: {i}: {countries[i].Name}");
}
Console.WriteLine($"{countries.Count} countries");
}
static void Main(string[] args)
{
string filePath = @"G:\G_Work\Pluralsight\Courses\Beginning Effective Collections\Code\Pop by Largest Final.csv";
CsvReader reader = new CsvReader(filePath);
Dictionary <string, List <Country> > countries = reader.ReadAllCountries();
foreach (string region in countries.Keys)
{
Console.WriteLine(region);
}
Console.Write("Which of the above regions do you want? ");
string chosenRegion = Console.ReadLine();
if (countries.ContainsKey(chosenRegion))
{
// display 10 highest population countries in the selected region
foreach (Country country in countries[chosenRegion].Take(10))
{
Console.WriteLine($"{PopulationFormatter.FormatPopulation (country.Population).PadLeft(15)}: {country.Name}");
}
}
else
{
Console.WriteLine("That is not a valid region");
}
}
static void Main(string[] args)
{
//string filePath = @"C:\Users\david.hernandez\source\repos\Beginning Collections\m08 coll-coll\CountriesByRegion\Pop by Largest Final.csv";
string filePath = "Pop by Largest Final.csv";
CsvReader reader = new CsvReader(filePath);
Dictionary <string, List <Country> > countries = reader.ReadAllCountries();
Console.WriteLine("Which of the above regions do you want? ");
int count = 1;
var ListaKeys = new List <string>();
foreach (string region in countries.Keys)
{
Console.WriteLine($" {count++} {region}");
ListaKeys.Add(region);
}
bool done = false;
do
{
Console.WriteLine("Digite el numero de la region o si quiere salir q");
string input = Console.ReadLine();
bool regionCorrecta = int.TryParse(input, out int regionElegida);
if (regionCorrecta && regionElegida <= 6 && regionElegida > 0)
{
regionElegida -= 1;
if (countries.ContainsKey(ListaKeys[regionElegida]))
{
foreach (Country country in countries[ListaKeys[regionElegida]].Take(10))
{
Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
}
}
}
else if (input == "q")
{
done = true;
break;
}
else
{
Console.WriteLine("El valor digitado no es valido");
}
} while (!done);
//if (countries.ContainsKey(chosenRegion))
//{
// // display 10 highest population countries in the selected region
// foreach (Country country in countries[chosenRegion].Take(10))
// Console.WriteLine($"{PopulationFormatter.FormatPopulation (country.Population).PadLeft(15)}: {country.Name}");
//}
//else
// Console.WriteLine("That is not a valid region");
}
static void Main(string[] args)
{
string filePath = @"E:\Capgemini\Azure Training\C# Collections\LINQ\Pop by Largest Final.csv";
CsvReader reader = new CsvReader(filePath);
List <Country> countries = reader.ReadAllCountries();
var filteredCountries = countries.Where(x => !x.Name.Contains(',')).Take(20);
//Link Query Syntax
var filteredCountries2 = from country in countries
where !country.Name.Contains(',')
select country;
// listing the first 20 countries without commas in their names
foreach (Country country in filteredCountries)
{
Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
}
Console.WriteLine();
// listing the 10 highest population countries in alphabetical order.
// Reverse Where() and Take() to see the impact of swapping chaining order round
/*foreach (Country country in countries.Take(10).OrderBy(x=>x.Name))
* {
* Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
* }*/
}
static void Main(string[] args)
{
string filePath = @"C:\Users\matma\Desktop\PopbyLargestFinal.csv";
CsvReader reader = new CsvReader(filePath);
List <Country> countries = reader.ReadAllCountries();
reader.RemoveCommaCountries(countries);
/*Country lilliput = new Country("Lilliput", "LIL", "Somewhere", 2_000_000);
* int lilliputIndex = countries.FindIndex(x=> x.Population < 2_000_000);
* countries.Insert(lilliputIndex, lilliput);
* // countries.RemoveAt(lilliputIndex);
*/
Console.Write("Enter no. of countries to display> ");
bool inputIsInt = int.TryParse(Console.ReadLine(), out int userInput);
if (!inputIsInt || userInput <= 0)
{
Console.WriteLine("You must type in +ve integer. Exiting");
return;
}
int maxToDisplay = userInput;
//foreach (Country country in countries) // wyświetlanie danych za pomocą pętli foreach
for (int i = 0; i < countries.Count; i++) // wyświetlanie danych od najwyższej wartości
{
if (i > 0 && (i % maxToDisplay == 0))
{
Console.WriteLine("Hit return to continue, anything else to quit>");
if (Console.ReadLine() != "")
{
break;
}
}
Country country = countries[i]; //wczytuje wszystkie dane z pliku za pomocą pętli for
Console.WriteLine($"{i+1}: {PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
}
//Console.WriteLine($"{countries.Count} countries");
Console.ReadKey();
}
static void Main(string[] args)
{
string filePath = @"C:\Users\Rui Reis\program\learning\dotnet\pluralsight\Robinson_Beginning_CSharp_Collections\code\Pop by Largest Final.csv";
CsvReader reader = new CsvReader(filePath);
List <Country> countries = reader.ReadAllCountries();
var filteredCountries = countries.Where(x => !x.Name.Contains(','));//.ToList().GetRange(0, 20);
var filteredCountries2 = from country in countries
where !country.Name.Contains(',')
select country;
//foreach (Country country in countries.GetRange(0, 20))
foreach (Country country in filteredCountries2)
{
Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: { country.Name}");
}
//Console.WriteLine($"{countries.Count} countries.");
}
static void Main(string[] args)
{
string filePath = @"G:\G_Work\Pluralsight\Courses\Beginning Effective Collections\Code\Pop by Largest Final.csv";
CsvReader reader = new CsvReader(filePath);
List <Country> countries = reader.ReadAllCountries();
// This is the code that inserts and then subsequently removes Lilliput.
// Comment out the RemoveAt to see the list with Lilliput in it.
Country lilliput = new Country("Lilliput", "LIL", "Somewhere", 2_000_000);
int lilliputIndex = countries.FindIndex(x => x.Population < 2_000_000);
countries.Insert(lilliputIndex, lilliput);
countries.RemoveAt(lilliputIndex);
foreach (Country country in countries)
{
Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
}
Console.WriteLine($"{countries.Count} countries");
}
static void Main(string[] args)
{
string filePath = @"G:\G_Work\Pluralsight\Courses\Beginning Effective Collections\Code\Pop by Largest Final.csv";
CsvReader reader = new CsvReader(filePath);
List <Country> countries = reader.ReadAllCountries();
// listing the first 20 countries without commas in their names
foreach (Country country in countries.Where(x => !x.Name.Contains(',')).Take(20))
{
Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
}
Console.WriteLine();
// listing the 10 highest population countries in alphabetical order.
// Reverse Where() and Take() to see the impact of swapping chaining order round
foreach (Country country in countries.Take(10).OrderBy(x => x.Name))
{
Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
}
}
static void Main(string[] args)
{
string filePath = @"C:\Users\tarep\Documents\PluralSight\BeginningCSharpCollections_Pluralsight\Pop by Largest Final.csv";
CsvReader reader = new CsvReader(filePath);
//creating a list of Country instances
List <Country> countries = reader.ReadAllCountries();
//removing countries with ',' in the name
reader.RemoveCommaCountries(countries);
//adding a new country to the list
var wakanda = new Country("Wakanda", "WAK", "Africa", 6_000_000);
//using a lambda expression to find wakanda position / index
int wakandaIndex = countries.FindIndex(_ => _.Population < 6_000_000);
//insert the instance in an especific index
//it can prejudicate the software performance, cause all the positions after the insertion will change in the memory
countries.Insert(wakandaIndex, wakanda);
//you can remove using the index too
//countries.RemoveAt(wakandaIndex);
//enumerate all countries at the file
/*
* foreach (Country country in countries)
* {
* Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
* }
*/
//enumerate only the quantity especified by user
Console.WriteLine("Enter the number of countries you wanna display: ");
//read the user input and verifify if it's an integer
bool verifyInput = int.TryParse(Console.ReadLine(), out int userInput);
//verifiy the input again
if (!verifyInput || userInput <= 0)
{
//unexpected value
Console.WriteLine("You need to type an integer number!");
}
//compare the number of countries in the list with the user input and use the minimum
var maxCountries = Math.Min(userInput, countries.Count) == userInput ? userInput : countries.Count;
//enumerate only the countries user asked but show the option to continue displaying
//enumerate all countries in the list
for (int i = 0; i < countries.Count; i++)
{
//stop displaying when it reaches the input user
if (i > 0 && (i % maxCountries == 0))
{
//ask user if then want to continue
Console.WriteLine("\nHit enter to contine or anything else to quit: ");
//verify if the input isn't enter
if (Console.ReadLine() != "")
{
//break the loop if it's not
break;
}
}
Country country = countries[i];
Console.WriteLine($"{i+1} : {PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)} : {country.Name}");
}
//shows the number of elements in the list
Console.WriteLine($"\n{countries.Count} countries");
Console.ReadLine();
}