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C# finally

C# finally block is used to execute important code which is to be executed whether exception is handled or not. It must be preceded by catch or try block.

C# finally example if exception is handled

using System;
public class ExExample
{
    public static void Main(string[] args)
    {
        try
        {
            int a = 10;
            int b = 0;
            int x = a / b;
        }
        catch (Exception e) { Console.WriteLine(e); }
        finally { Console.WriteLine("Finally block is executed"); }
        Console.WriteLine("Rest of the code");
    }
}

Output:

System.DivideByZeroException: Attempted to divide by zero.
Finally block is executed
Rest of the code

C# finally example if exception is not handled

using System;
public class ExExample
{
    public static void Main(string[] args)
    {
        try
        {
            int a = 10;
            int b = 0;
            int x = a / b;
        }
        catch (NullReferenceException e) { Console.WriteLine(e); }
        finally { Console.WriteLine("Finally block is executed"); }
        Console.WriteLine("Rest of the code");
    }
}

Output:

Unhandled Exception: System.DivideBy

Next TopicC# User-Defined Exceptions

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