c# object oriented programming tutorial

the base class's FCN ()}; Base bobj;d1 d1obj;d2 d2obj; Base *BP1 = bobj, *bp2 = d1obj, *bp3 = AMP;D2OBJ;BP1-GT;FCN ();//call BASE::FCN at run timeBP2-GT;FCN ();//call BASE::FCN at run timeBP3-GT;FCN ();//call D2::FCN at run timeThree pointers are pointers to the base class type, so the three calls are determined by locating FCN in base.Because FCN is a virtual function, the compiler generates code that is invoked at execution time based on the actual type that the reference or pointer binds to.

interface is the WA　　Y it receives messages. It is defined in the class the object belong To.functions of the interface if there is an excuse, then it is convenient to exchange other things, make in the program can removable things coupling-cohesion　　, the coupling is the most we want to do.　　Communication: Communicate with the outside world. Protection, if there is an excuse, you can protect the internal implementations, outside the excuse is still

Method 4 of PHP object-oriented programming for large-scale PHP project development. PHP's advanced OOP technology after reading the basic OOP concepts, I can show you more advanced technology: serialization PHP does not support permanent objects, in OOP, permanent objects can be advanced OOP technology in PHP. After reading the basic OOP concepts, I can show you

Introduction : C + + object-oriented cumbersome mechanism, have to let you in the programming frequently "sick", find mistakes, find bugs, puzzles, is your source of disease, I am not what "physicians", but also summed up the following "prescription". Note: It is inevitable that there will be memory of the omission, th

; // sets the truncated next pointer to discard the next pointer at the node, and disconnects the discarded node, that is, the unnecessary node.Cout }Cout Delete [] Joseph;Cin. get ();Cin. get ();} The hard part of this Code is the setting of the termination condition of the while loop. If the reader is not able to understand this part, pay attention to the following scheme to help learning.The structure solution is very important. It is the foundation for us to fully understand the abstract pro

PHP object-oriented programming (oop) learning notes (4)-Exception handling class Exception. Exception handling modules similar to other languages are added for the use of PHP5. Exceptions in PHP code can be thrown by throw statements and captured by catch statements. Usage exceptions that require exception handling PHP5 adds exception handling modules similar t

delete pointer has a static type that is different from the dynamic type of the object being deleted, the compiler performs a destructor of the dynamic type. We can ensure that the destructor is defined as a virtual function in the base class.8. Containers and InheritanceWhen we use containers to store objects in the inheritance system, we usually have to take a brief approach to storing them, because we don't allow different types of elements to be

C # Study Notes (6)-Introduction to object-oriented programming, 1. Meaning of Object-Oriented Programming * It is a modular programming me

1, using the const pointer;const INT * PONE; A pointer to an integer constant that points to a value that cannot be modified;int * Const PTWO; A constant pointer to an integral type that points to a value that can be modified, but that pointer no longer points to another variable;const int * Const PTHREE; Constant pointer to integral type constantsummarize, summary;Access the value at the memory address where the pointer is stored, using the dereference operator (*)Create an

[] args) { New Wolf (). Eat (); New Sheep (). Eat (); } }public class Wolf:ianimal {Multi-State implementationpublic void Eat () {Console.WriteLine ("Wolf eats meat!") ”);}}public class Sheep:ianimal {Multi-State implementationpublic void Eat () {Console.WriteLine ("Sheep eat grass!") ”);}}InterfacePublic interface IAnimal {void Eat ();}In addition to the Declaration,Running GuestArticles are original, reproduced please link to the form of the address of this articleMulti-State learning notes fo

C ++'s tedious object-oriented mechanism has to make you frequently "ill", find errors, find bugs, and troubles in programming. It is the source of your illness. Although I am not a "good doctor ", however, it can be summed up as follows ". Note: It is inevitable that there will be memory omissions and insufficient kno

As mentioned above, the Unit of the object-oriented program is the object, but the object is instantiated through the class, so the first thing we need to do is how to declare the class, it is easy to create a class. You only need to master the basic program syntax and definition rules. Where is the difficulty? How man

Note: Some data sources are from the Internet. 1. What is an object? In the real world, everything is an object. A car, an apple, a table, and a person are all objects. Objects in C # Represent the structure of data and behavior. 2. What is object-oriented Al

Objective-C basics: Basic knowledge of Object-Oriented Programming (OOP) (1) -- indirect, objective-coop Since Cocoa is based on the concept of OOP and Objective-C is also an object-oriented