Boxing And Unboxing in C#
1. Boxing is when we convert a value type into reference type,when we are boxing we are creating reference variables which point to a new copy on the heap.
2. Unboxing is when we convert a reference type to a value type.
3. Best example of boxing and unboxing can be while we store integer variable which is a value type in a ArrayList which is a reference type.
4. And when we retrieve the value stored in ArrayList to an integer then we change a reference type to value type ie we do unboxing.
ArrayList myArrayList = new ArrayList();Int n = 7;myArrayList.Add(n);//Boxing of nn = (int)myArrayList[0];//Unboxing of myArrayList[0]
