static void Main(string[] args)
{
ObjectStack aObjectStack = new ObjectStack();
aObjectStack.Push("ABCD");
aObjectStack.Push(10);
int firstItem = (int) aObjectStack.Pop();
int lastItem = (int) aObjectStack.Pop(); // Boom...
IntegerStack aIntegerStack = new IntegerStack();
aIntegerStack.Push(12);
//aIntegerStack.Push("ABCD"); //Compile error: good.
// But for others data type you have to write seperate stacks ...;=((
GenericStack<int> intGenericStack = new GenericStack<int>();
intGenericStack.Push(1212);
//intGenericStack.Push("ABCD"); //Compile error
GenericStack<string> stringGenericStack = new GenericStack<string>(); //Wow. Can configure the type
stringGenericStack.Push("ABCD");
//stringGenericStack.Push(2323);
GenericStack<Student> studentStack = new GenericStack<Student>(); //..Great it can be used for user defined type
Student student1 = new Student("001", "Pinki");
Student student2 = new Student("003", "Pavel");
studentStack.Push(student1);
studentStack.Push(student2);
}