static void Main(string[] args)
{
//// Declaring, not instantiating
//Country[] countries = null;
//// Specifying only the size
//Country[] countries = new Country[nCountries];
//// Specifying the values
Country[] countries = new Country[]
{
new Country("United Kingdom", "GBR", "Europe", 66_000_000),
new Country("Nepal", "NPL", "Asia", 29_000_000)
};
// OK. int[] is a reference type
int[] numbers = null;
// Wrong. int is a value type so can't be null
int number = null;
string filePath = @"G:\G_Work\Pluralsight\Courses\Beginning Effective Collections\Code\Pop by Largest Final.csv";
CsvReader reader = new CsvReader(filePath);
Country[] countries = reader.ReadFirstNCountries(10);
foreach (Country country in countries)
{
Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
}
}
}
static void Main(string[] args)
{
string filePath = @"G:\G_Work\Pluralsight\Courses\Beginning Effective Collections\Code\Pop by Largest Final.csv";
CsvReader reader = new CsvReader(filePath);
// using the array with an interface
IList <Country> countries = reader.ReadFirstNCountries(10);
foreach (Country country in countries)
{
Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
}
}
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);
Dictionary <string, Country> countries = reader.ReadAllCountries();
WriteLine("Which country code do you want to look up?");
string user_input = ReadLine();
bool gotCountry = countries.TryGetValue(user_input, out Country country);
if (!gotCountry)
{
WriteLine($"Sorry, there is no country with the code, {user_input}.");
}
else
{
WriteLine($"{country.Name} has population {PopulationFormatter.FormatPopulation(country.Population)}.");
}
// Country[] countries = reader.ReadFirstNCountries(10);
//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)
//{
// Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population),-15}: { country.Name}");
//}
//Console.WriteLine($"{countries.Count} countries.");
}
