.NET - C# Features - Pass by value and Pass by reference for value types

Program.cs

// ValueTypesDemo.cs
// PassByValue vs PassByReference
public class ValueTypeDemo
{
    public void Execute()
    {
        int value = 9;

        Console.WriteLine("----------------------------------------------------------------");
        Console.WriteLine($"Inside Caller: Before ProcessByValue : Value: {value}");
        ProcessByValue(value);
        Console.WriteLine($"Inside Caller: After ProcessByValue : Value: {value}");

        Console.WriteLine("----------------------------------------------------------------");
        Console.WriteLine($"Inside Caller: Before ProcessByReference : Value: {value}");
        ProcessByReference(ref value);
        Console.WriteLine($"Inside Caller: After ProcessByReference : Value: {value}");
        Console.WriteLine("----------------------------------------------------------------");
    }

    private void ProcessByValue(int value)
    {
        value = value * 2 + 1;
        Console.WriteLine($"Inside ProcessByValue: Current Value: {value}");
    }

    private void ProcessByReference(ref int value)
    {
        value = value * 2 + 1;
        Console.WriteLine($"Inside ProcessByReference: Current Value: {value}");
    }
}

// Driver Class
// Instantiates demo class and executes the demo.
class Program
{
    static void Main(string[] args)
    {
        ValueTypeDemo valueTypeDemo = new ValueTypeDemo();
        valueTypeDemo.Execute();
    }

}