static void Main(string[] args)
{
int[] numbers = { 23, 34, 56, 67, 89, 9, 0, 56, 45, 90, 567, 2, 3, 4, 5 };
//Using method syntax -lamda Expression
var numbersGreaterThan50 = numbers.Where(x => x > 50);
//Using sql query syntax - querry expression
var numbersGreaterThanFifty = from num in numbers
where num > 50
select num;
String[] names = { "Kushal", "abrupeshc", "Rajesh", "abd", "Ramesh", "kamal", "Ramsey", "rohit" };
//Using method syntax -lamda Expression
var namesStartingFromR = names.Where(x => x.ToUpper().StartsWith("R") && x.Length > 3);
//Using sql query syntax - querry expression
var namesStartingFromR2 = from name in names
where name.ToUpper().StartsWith("R") && name.Length > 3
select name;
foreach (var name in namesStartingFromR2)
{
Console.WriteLine(name);
}
//listing out Asian countries
List <Country> countries = Country.GetCountries();
var asianCountries = from member in countries
where member.Continents == Continents.Asia
select member;
foreach (var member in asianCountries)
{
Console.WriteLine(member.Name);
}
//HW1: List of countries in Europe Which Have population less <10k
var europeanCountries = from member in countries
where (member.Continents == Continents.Europe) && (member.Population < 10000)
select member;
Console.WriteLine("List of Europen countries which has population less than 10K are:");
foreach (var member in europeanCountries)
{
Console.WriteLine(member.Name);
}
//HW2: List of asian countries which are not ever invaded.
var nonColonizedAsian = from member in countries
where (member.Continents == Continents.Asia) && (member.IndependenceDay == default)
select member;
Console.WriteLine("List asian countries which are not ever invaded:");
foreach (var member in nonColonizedAsian)
{
Console.WriteLine(member.Name);
}
//projections
var squareR5 = from num in numbers
select num * num;
foreach (var num in squareR5)
{
Console.WriteLine(num);
}
var result6 = from num in numbers
orderby num
select num;
/*var result7 =from name in names
* orderby name descending
* select name;*/
//Partitioning
var result7 = numbers.Skip(5).Take(5);
//Quantifier
var result8 = numbers.Any(x => x % 2 == 0);
var result9 = numbers.All(x => x % 2 == 0);
var result10 = numbers.Contains(34);
var result11 = Enumerable.Range(1, 1000);
var result12 = Enumerable.Repeat("Hello World", 10);
foreach (var num in result7)
{
Console.WriteLine(num);
}
ComplexType complexType = new ComplexType();
complexType.LearnRestrictions();
}
public void LearnRestrictions()
{
List <Country> countries = Country.GetCountries();
var asianCountries = from member in countries
where member.Continents == Continents.Asia
select member;
foreach (var member in asianCountries)
{
Console.WriteLine(member.Name);
}
//HW1: List of countries in Europe Which Have population less <10k
var europeanCountries = from member in countries
where (member.Continents == Continents.Europe) && (member.Population < 10000)
select member;
Console.WriteLine("List of Europen countries which has population less than 10K are:");
foreach (var member in europeanCountries)
{
Console.WriteLine(member.Name);
}
//HW2: List of asian countries which are not ever invaded.
var nonColonizedAsian = from member in countries
where (member.Continents == Continents.Asia) && (member.IndependenceDay == default)
select member;
Console.WriteLine("List asian countries which are not ever invaded:");
foreach (var member in nonColonizedAsian)
{
Console.WriteLine(member.Name);
//HW - Isthere any african county in yr collection.
//HW - Print first two largest asian countryies names.
// HW 1 - Is there any African country in your country collection
var africanMember = countries.Any(x => x.Continents == Continents.Africa);
if (africanMember)
{
Console.WriteLine("List contains african member");
}
else
{
Console.WriteLine("List doesn't contain african member");
}
//Hw 2- Print First 2 largest asian country names.
var areaOrderedList = countries.OrderByDescending(x => x.Area);
var firstTwoLargestCountry = areaOrderedList.Take(2);
Console.WriteLine("Two largest members are:");
foreach (var item in firstTwoLargestCountry)
{
Console.WriteLine(item.Name);
}
}
}
