Lists | C# Online Compiler

Lists by Rivernina

using System;
using System.Collections.Generic;
					
public class Program
{
	public static void Main()
	{
		List<int> playerAgeList = new List<int> {23, 33, 43, 53, 63};

		//To access the first item in the list, use playerAgeList[0]
		
		Console.WriteLine(playerAgeList[0]);
		
		//Add()
		playerAgeList.Add(73);
		
		
		//Count
		Console.WriteLine(playerAgeList.Count);
		
		//Insert()
		playerAgeList.Insert(2 , 55);
		//Puts 55 in the 3rd position in the list
		Console.WriteLine(playerAgeList.Count);

		
		//Remove()
		playerAgeList.Remove(55);
		//Removes the first instance of 55
		Console.WriteLine(playerAgeList.Count);

		
		//RemoveAt()
		playerAgeList.RemoveAt(2);
		//Removes the item at the 2 index
		Console.WriteLine(playerAgeList.Count);

		
		//Contains()
		playerAgeList.Contains(23);
		//Evalutes to true.
		
		playerAgeList.Contains(11);
		//Evaluations to false.
		
		//Clear()
		playerAgeList.Clear();
		//All items are removed from the list. 
		Console.WriteLine(playerAgeList.Count);

	}
}

​x
 
using System;
using System.Collections.Generic;
                    
public class Program
{
    public static void Main()
    {
        List<int> playerAgeList = new List<int> {23, 33, 43, 53, 63};
​
        //To access the first item in the list, use playerAgeList[0]
        
        Console.WriteLine(playerAgeList[0]);
        
        //Add()
        playerAgeList.Add(73);
        
        
        //Count
        Console.WriteLine(playerAgeList.Count);
        
        //Insert()
        playerAgeList.Insert(2 , 55);
        //Puts 55 in the 3rd position in the list
        Console.WriteLine(playerAgeList.Count);
​
        
        //Remove()
        playerAgeList.Remove(55);
        //Removes the first instance of 55
        Console.WriteLine(playerAgeList.Count);
​
        
        //RemoveAt()
        playerAgeList.RemoveAt(2);
        //Removes the item at the 2 index
        Console.WriteLine(playerAgeList.Count);
​
        
        //Contains()
        playerAgeList.Contains(23);
        //Evalutes to true.
        
        playerAgeList.Contains(11);
        //Evaluations to false.
        
        //Clear()
        playerAgeList.Clear();
        //All items are removed from the list. 
        Console.WriteLine(playerAgeList.Count);
​
    }
}

Invoices:
Invoice { Country = Germany, BillingMethod = Paper, InvoiceCount = 4, CustomerCount = 5, Amount = 1234 }
Invoice { Country = Germany, BillingMethod = Electronic, InvoiceCount = 52, CustomerCount = 34, Amount = 4567 }
Invoice { Country = Greece, BillingMethod = Paper, InvoiceCount = 8, CustomerCount = 75, Amount = 78955 }
Invoice { Country = Denmark, BillingMethod = Paper, InvoiceCount = 32, CustomerCount = 15, Amount = 7890 }
Invoice { Country = Norway, BillingMethod = Electronic, InvoiceCount = 4, CustomerCount = 52, Amount = 65898 }
Flattened Invoices:
CountryInvoice { Country = Germany, PaperInvoiceCount = 4, PaperCustomerCount = 5, PaperAmount = 1234, ElectronicInvoiceCount = 52, ElectronicCustomerCount = 34, ElectronicAmount = 4567 }
CountryInvoice { Country = Greece, PaperInvoiceCount = 8, PaperCustomerCount = 75, PaperAmount = 78955, ElectronicInvoiceCount = 0, ElectronicCustomerCount = 0, ElectronicAmount = 0 }
CountryInvoice { Country = Denmark, PaperInvoiceCount = 32, PaperCustomerCount = 15, PaperAmount = 7890, ElectronicInvoiceCount = 0, ElectronicCustomerCount = 0, ElectronicAmount = 0 }
CountryInvoice { Country = Norway, PaperInvoiceCount = 0, PaperCustomerCount = 0, PaperAmount = 0, ElectronicInvoiceCount = 4, ElectronicCustomerCount = 52, ElectronicAmount = 65898 }

Cached Result
Last Run:	11:35:01 am
Compile:	0.011s
Execute:	0.06s
Memory:	4.12Mb
CPU:	0.071s

View IL Code