Object class and instance ShowThe concept of classes
A class is the structure of an object, meaning the definition of all items that an object is
made up of. An object is therefore the "result" of a class. In reality, an object is an instance of a class,
which is why can use...
Windows Error Codes and How to Fix them ShowWindows Error Codes and How to Fix them
Below is a list of the most common error codes that you an face while using Windows and its basic components. Some solutions have been provided for you to try to solve them. You should also note that...
How to fix a rundll error ShowHow to fix a rundll error
Why does this happen?
How to fix a rundll error?
Solution 1: Reboot your computer
Solution 2: Install and Remove the program
Solution 3: Locate the error with System Configuration
Solution 4: Run an...
Vista - How to fix missing CD-ROM/ DVD DRIVE ShowVista - How to fix missing CD-ROM/ DVD DRIVE
Issue
Solutions
System Restore
Remove and reinstall drivers
Registry
Issue
Your CD/DVD drive isn’t appearing on “Computer”, this sometimes happens when you have just installed or...
OOP - Polymorphism ShowDefinition of polymorphism
The word polymorphism comes from Greek and means having several different forms.
This is one of the essential concepts of object-oriented programming. Where inheritance is related to classes and
(their hierarchy),...
OOP - Data encapsulation ShowThe concept of encapsulation
Encapsulation is a way of organising data and methods into a structure by concealing the the way
the object is implemented, i.e. preventing access to data by any means other than those specified. Encapsulation...
OOP - Inheritance ShowThe concept of inheritance
Inheritance is specific to object-oriented programming, where a new class is created from an
existing class. Inheritance (often referred to as subclasses) comes from the fact that the subclass
(the newly created class)...