using System;

class Program
{
	static void Main(string[] args)
	{
		//Usually C# forbids us to leave variables unitialized
		SampleClass sampleClass;
		SampleStruct sampleStruct;

		//However, C# thinks that an out-Function will do the initialization
		HaveALook(out sampleClass);
		HaveALook(out sampleStruct);
	}

	static void HaveALook(out SampleClass c)
	{
		//Insert a breakpoint here to see the
		//value of s before the assignment:
		//It will be null...
		c = new SampleClass();
	}

	static void HaveALook(out SampleStruct s)
	{
		//Insert a breakpoint here to see the
		//value of s before the assignment:
		//It will NOT be null...
		s = new SampleStruct();
	}

	//In C# you can created nested classes
	class SampleClass
	{

	}

	//A structure always inherits ONLY from object,
	//we cannot specify other classes (more on that later)
	//However, an arbitrary number of interfaces can
	//be implemented (more on that later as well)
	struct SampleStruct
	{

	}
}