private static void PrintCountries(IEnumerable <Country> countries)
{
foreach (var country in countries)
{
Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
}
}
public static void RemoveComma(CsvReader reader, List <Country> countries)
{
reader.RemoveCommaCountries(countries);
Console.WriteLine("Enter no. of countries in a +ve integer. Existing");
bool inputIsInt = int.TryParse(Console.ReadLine(), out int userInput);
if (!inputIsInt || userInput <= 0)
{
Console.WriteLine("You must type in a +ve integer. Existing");
return;
}
int maxToDisplay = userInput;
for (int i = 0; i < countries.Count; i++)
{
if (i > 0 && (i % maxToDisplay == 0))
{
Console.WriteLine("Hit return to continue, anything else to quit>");
if (Console.ReadLine() != "")
{
break;
}
}
Country country = countries[i];
Console.WriteLine($"{i + 1} : {PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)} : {country.Name}");
}
}
static void Main(string[] args)
{
string filePath = @"E:\Projects_C#\Csharp-Collections-TopTenPops\Csharp-Collections-TopTenPops\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.WriteLine("\nWhich of the above regions do you want? ");
Console.Write(">> ");
string choosenRegion = Console.ReadLine();
if (countries.ContainsKey(choosenRegion))
{
foreach (Country country in countries[choosenRegion].Take(10))
{
Console.WriteLine(
$"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)} : {country.Name}");
}
}
else
{
Console.WriteLine("That is not a valid region!");
}
// RemoveComma(reader, countries);
// FilterCountries();
}
static void Main(string[] args)
{
string filePath = @"C:\Users\outmane\source\repos\TopTenPops\TopTenPops\Pop by Largest Final.csv";
CsvReader reader = new CsvReader(filePath);
Dictionary <string, List <Country> > countries = reader.ReadAllCountries();
foreach (string region in countries.Keys)
{
Console.WriteLine(region);
}
Console.WriteLine("Which of the above regions do you want ?");
string chosenRegion = Console.ReadLine();
if (countries.ContainsKey(chosenRegion))
{
foreach (Country country in countries[chosenRegion].Take(10))
{
Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: { country.Name }");
}
}
else
{
Console.WriteLine("That is not a valid region");
}
}
static void displayDict(CsvReader reader)
{
Dictionary <string, Country> countries = reader.ReadAllCountriesDict();
Console.WriteLine("Which country code do you want to look up? ('q' to quit)");
string userInput = "";
while (userInput != "Q")
{
Console.Write("Code> ");
userInput = Console.ReadLine();
userInput = userInput.ToUpper();
bool gotCountry = countries.TryGetValue(userInput, out Country country);
if (!gotCountry)
{
Console.WriteLine($"Sorry, there is no country with code, {userInput}");
}
else
{
Console.WriteLine($"{country.Name} has population " +
$"{PopulationFormatter.FormatPopulation(country.Population)}");
}
}
}
static void displayList(CsvReader reader)
{
List <Country> countries = reader.ReadAllCountriesList();
reader.RemoveCommaCountries(countries);
Console.WriteLine("How many countries would you like to display?");
int userInput = int.Parse(Console.ReadLine());
int maxToDisplay = userInput;
for (int i = 0; i < countries.Count; i++)
{
if (i > 0 && (i % maxToDisplay == 0))
{
Console.WriteLine("Hit return to continue, anything else to quit>");
if (Console.ReadLine() != "")
{
break;
}
}
Country country = countries[i];
Console.WriteLine($"{ i + 1}: { PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: { country.Name}");
}
}
static void Main(string[] args)
{
string filePath = @"C:\Users\kevin.pineda\Desktop\C-sharp\.Net Framework\TopTenPops\TopTenPops\Pop by Largest Final.csv";
CsvReader reader = new CsvReader(filePath);
Country[] countries = reader.ReadFirstNCountries(10);
foreach (Country country in countries)
{
Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
}
}
static void Main(string[] args)
{
string filePath = @"F:\Workspace\c-sharp-path\beginning-csharp-collections-ps\src\CollectionStudies\Pop by Largest Final.csv";
CsvReader reader = new CsvReader(filePath);
Country[] countries = reader.ReadFirstNCountries(10);
foreach (Country country in countries)
{
Console.WriteLine($@"{PopulationFormatter.FormatPopulation
(country.Population).PadLeft(15)} : {country.Name}");
}
}
static void displayLinq(CsvReader reader)
{
List <Country> countries = reader.ReadAllCountriesList();
var filteredCountries = countries.Where(x => !x.Name.Contains(',')).Take(20);
var filteredCountries2 = from country in countries
where !country.Name.Contains(',')
select country;
int index = 0;
foreach (Country country in filteredCountries)
{
index += 1;
Console.WriteLine($"{index}: { PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: { country.Name}");
}
}
static void displayByRegion(CsvReader reader)
{
Dictionary <string, List <Country> > countries = reader.ReadAllCountriesByRegion();
foreach (string region in countries.Keys)
{
Console.WriteLine(region);
}
Console.Write("Which of the above regions do you want? ");
string chosenRegion = Console.ReadLine();
if (countries.ContainsKey(chosenRegion))
{
foreach (Country country in countries[chosenRegion].Take(10))
{
Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: { country.Name } ");
}
}
else
{
Console.WriteLine("That is not a valid region");
}
}
static void Main(string[] args)
{
string filePath = @"./Pop by Largest Final.csv";
CsvReader reader = new CsvReader(filePath);
var countries = reader.ReadAllCountries();
foreach (var region in countries.Keys)
{
Console.WriteLine(region);
}
Console.WriteLine("WHich of the above regions do you want?");
string chosenRegion = Console.ReadLine();
if (countries.ContainsKey(chosenRegion))
{
foreach (var country in countries[chosenRegion].Take(10))
{
Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
}
}
else
{
Console.WriteLine("That is not a valid region");
}
// Country lilliput = new Country("Lilliput", "LIL", "SomeWhere", 2_000_000);
// int lilliputIndex = countries.FindIndex(x => x.Population < lilliput.Population);
// countries.Insert(lilliputIndex, lilliput);
// countries.RemoveAt(lilliputIndex);
// Console.WriteLine("Enter number of countries to display");
// bool inputIsInt = int.TryParse(Console.ReadLine(), out int input);
// if (!inputIsInt || input <= 0)
// {
// Console.WriteLine("You must type in a positive integer. Exiting");
// }
// // int max = Math.Min(input, countries.Count);
// int max = input;
// foreach (Country country in countries.Where(x => !x.Name.Contains(",")).Take(10))
// for (int i = 0; i < countries.Count; i++)
// {
// if (i > 0 && (i % max) == 0)
// {
// Console.WriteLine("Hit return to continue, anything else to quit");
// if (Console.ReadLine() != "")
// {
// break;
// }
// }
// Country country = countries[i];
// }
// Console.WriteLine("Which country code do you want to look up?");
// string input = Console.ReadLine();
// bool gotCountry = countries.TryGetValue(input.ToUpper(), out Country country);
// if (!gotCountry)
// {
// Console.WriteLine($"Sorry, there is no country with code {input}");
// }
// else
// {
// Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
// }
// Console.WriteLine($"{countries.Count} countries");
}
static void Main(string[] args)
{
string filePath = @"C:\Users\Sean\Source\Repos\PluralSight_BeginningCollections\TopTenPops\Pop by Largest Final.csv";
CsvReader reader = new CsvReader(filePath);
//Country[] countries = reader.ReadFirstNCountries(10);
IList <Country> countries = reader.ReadFirstNCountries(10); //
//List<Country> countries = reader.ReadAllCountries();
#region ReadAllCountries() lookup using Dictionary
//Dictionary<string, Country> countries = reader.ReadAllCountries();
//Console.WriteLine("Which country code do you want to look up? ");
//string userInput = Console.ReadLine();
//bool gotCountry = countries.TryGetValue(userInput, out Country country);
//if (!gotCountry)
//{
// Console.WriteLine($"Sorrry, there is no country code with the value {userInput}");
//}
//else
//{
// Console.WriteLine($"{country.Name} has a population {PopulationFormatter.FormatPopulation(country.Population)}");
//}
#endregion
#region foreach (var country in countries)
foreach (var country in countries)
{
Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
}
#endregion
#region loop termination conditions
//for (int i = 0; i < countries.Count; i++)
//{
// Country country = countries[i];
// Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
//}
#endregion
#region iterating only some items
//Console.WriteLine("Enter number of countries to display > ");
//bool inputIsInt = int.TryParse(Console.ReadLine(), out int userInput);
//if( !inputIsInt || userInput <= 0)
//{
// Console.WriteLine("You must type in a positive integer. Exiting");
// return;
//}
//int maxToDisplay = Math.Min(userInput, countries.Count);
//for (int i = 0; i < maxToDisplay; i++)
//{
// Country country = countries[i];
// Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
//}
#endregion
#region Batching an iteration
//Console.WriteLine("Enter number of countries to display > ");
//bool inputIsInt = int.TryParse(Console.ReadLine(), out int userInput);
//if (!inputIsInt || userInput <= 0)
//{
// Console.WriteLine("You must type in a positive integer. Exiting");
// return;
//}
//int maxToDisplay = userInput;
//for (int i = 0; i < countries.Count; i++)
//{
// if (i > 0 && (i % maxToDisplay == 0))
// {
// Console.WriteLine("Hit return to continue, anything else to quit :");
// if (Console.ReadLine() != "")
// {
// break;
// }
// }
// Country country = countries[i];
// Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
//}
#endregion
#region Displaying the Order when Enumerating
//Console.WriteLine("Enter number of countries to display > ");
//bool inputIsInt = int.TryParse(Console.ReadLine(), out int userInput);
//if (!inputIsInt || userInput <= 0)
//{
// Console.WriteLine("You must type in a positive integer. Exiting");
// return;
//}
//int maxToDisplay = userInput;
//for (int i = 0; i < countries.Count; i++)
//{
// if (i > 0 && (i % maxToDisplay == 0))
// {
// Console.WriteLine("Hit return to continue, anything else to quit :");
// if (Console.ReadLine() != "")
// {
// break;
// }
// }
// Country country = countries[i];
// Console.WriteLine($"{i + 1} : {PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
//}
#endregion
#region Enumerating Backwards
//Console.WriteLine("Enter number of countries to display > ");
//bool inputIsInt = int.TryParse(Console.ReadLine(), out int userInput);
//if (!inputIsInt || userInput <= 0)
//{
// Console.WriteLine("You must type in a positive integer. Exiting");
// return;
//}
//int maxToDisplay = userInput;
//for (int i = countries.Count - 1; i >= 0 ; i--)
//{
// int displayIndex = countries.Count - 1 - i;
// if (displayIndex > 0 && (displayIndex % maxToDisplay == 0))
// {
// Console.WriteLine("Hit return to continue, anything else to quit :");
// if (Console.ReadLine() != "")
// {
// break;
// }
// }
// Country country = countries[i];
// Console.WriteLine($"{displayIndex + 1} : {PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
//}
#endregion
#region Systematically Removing Elements and keeping the index in sync
//reader.RemoveCommaCountries(countries);
//Console.WriteLine("Enter number of countries to display > ");
//bool inputIsInt = int.TryParse(Console.ReadLine(), out int userInput);
//if (!inputIsInt || userInput <= 0)
//{
// Console.WriteLine("You must type in a positive integer. Exiting");
// return;
//}
//int maxToDisplay = userInput;
//for (int i = 0; i < countries.Count; i++)
//{
// if (i > 0 && (i % maxToDisplay == 0))
// {
// Console.WriteLine("Hit return to continue, anything else to quit :");
// if (Console.ReadLine() != "")
// {
// break;
// }
// }
// Country country = countries[i];
// Console.WriteLine($"{i + 1} : {PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
//}
#endregion
#region Removing elements with RemoveAll
#endregion
#region limiting how many results with Take
//foreach (var country in countries.Take(10))
//{
// Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
//}
#endregion
#region Ordering Data with OrderBy
//foreach (var country in countries.OrderBy(c => c.Name))
//{
// Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
//}
#endregion
#region Chaining LINQ Methods
//foreach (var country in countries.OrderBy(c => c.Name).Take(10))
//{
// Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
//}
#endregion
#region Filtering Data with Where
//foreach (var country in countries.Where( c => !c.Name.Contains(",")).Take(20))
//{
// Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
//}
#endregion
#region LINQ Query Syntax
//var filteredCountries = countries.Where(c => !c.Name.Contains(","));//.Take(20);
//var filteredCountries2 = from country in countries
// where !country.Name.Contains(",")
// select country;
//foreach (var country in filteredCountries2)
//{
// Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
//}
//foreach (var country in filteredCountries2.Take(30))
//{
// Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population).PadLeft(15)}: {country.Name}");
//}
#endregion
#region Enumerating Dictionary Keys
//Dictionary<string, List<Country>> countries = reader.ReadAllCountries();
//foreach (var region in countries.Keys)
//{
// Console.WriteLine(region);
//}
//Console.WriteLine("Which of the above regions do you want? ");
//string chosenRegion = Console.ReadLine();
//if (countries.ContainsKey(chosenRegion))
//{
// foreach (var country in countries[chosenRegion].Take(10))
// {
// Console.WriteLine($"{PopulationFormatter.FormatPopulation(country.Population),15}: {country.Name}");
// }
//}
//else
//{
// Console.WriteLine("That is not a valid region");
//}
#endregion
// Console.WriteLine($"{countries.Count} countries");
}