public void BoxingUnboxing()
{
double dType1 = 2.3; //value type in stack
double dType2 = new double(); // value type in stack again
object oType = dType1; //boxing. dType1 value will be copyed to heap. oType as a reference will be available in stack
double dType3 = (double)oType; //unboxing. Cast to double neccessary
int iType = (int)oType; //Runtime exception. Invalid cast
WorkWithTypes refType = new WorkWithTypes(); //reference type. Declared at heap
}
public void ObjectBaseClass()
{
int iType = 2;
object oType = iType;
WorkWithTypes refType = new WorkWithTypes();
Console.WriteLine(iType); //Outputs the 2
Console.WriteLine(iType.ToString()); //outputs 2 but interpreted as string type
Console.WriteLine(oType.ToString()); //outputs 2 again, because underlying type is Int
Console.WriteLine(refType.ToString()); //outputs full class name by default
}
public void DefaultWord()
{
int iType = default(int); //0
int iType1 = 0;
string strType = default(string); //string null
string strType1 = string.Empty; //string empty constant
string strType2 = ""; //string empty string
object oType = default(object); //null
object oType1 = null;
WorkWithTypes refType = default(WorkWithTypes); //null
WorkWithTypes refType1 = null;
}