1. In an object-oriented programming language,PolymorphismYes inheritanceData abstractionAndInheritanceThe third basic feature.
2. "encapsulate" a new data type by combining features and behaviors.
3. "implement hiding" by "privatize" the detailsSeparation of interfaces and ImplementationsOpen.
4. The role of polymorphism is to eliminateCouplingLink.
5. Coupling
Program | object | design
Note: The following references are derived from the This section takes an example of a particle motion system (a particle motion system that is in fact a large number of movie clip randomly moving within a range and bounces off when it encounters a boundary), explaining the movie clip object-oriented
1. Indirect (indirection)1.1 Variables and indirection (use variables to replace some numbers)1.2 Indirect use of file namesconst indicates that a variable is not allowed to be changedconst int Nvalue;//nvalue is constconst char *pcontent; *pcontent is const, pcontent variableconst char* Const pcontent; Pcontent and *pcontent are both const.Strlen (String value); Returns the length of the value stringAs the following example, can be written by non-professional files, which is indirect, but the p
that simply encapsulates the creation of the object code and then returns the newly created object.function person ( name, age, Job) { var o = new Object (); O.name = name; O.age = age; O.job = job; O.sayname = function () { console.log (this.name); } return o;} var friend = new person (' Micholas ', software, ' Engineer '); Friend.sayname ();In addition to using the new operat
(text) {return This.indexof (text) = = 0}var msg = "Hello World" msg.startwith ("Hell O ");
constructor mode is used to define instance properties, while prototype mode is used to define methods and shared properties function person (name, age, Job) { this.name = name; nbs P This.age = Age; this.job = job;} Person Protytype = { constructor:person, sayname:function () { a Lert (this.name); }}
Dynamic Prototyping Mode
function p
=Window.openmethod (); jsonmethods.bb ();//BBJsonmethods.cc ();//cc/** Problems solved by closures: * 1, solved the problem of private and private objects in JS object-oriented process * 2, functions defined inside the function can be used outside the function*/If you open jquery's code, you'll find that he's using closures.A few of the concepts described above I have simply said, if not detailed enough, y
Object-oriented programming--object oriented programming, short for OOP, is a programming idea. OOP takes objects as the basic unit of a program, and an
Chapter 2 C ++ object-orientedProgramDesign method OverviewEncapsulation, inheritance, combination, virtual functions, abstract base classes, dynamic binding, and polymorphism are important concepts in object-oriented programming.12.1 introduction to object-oriented12.2
in the prototype are shared by many instances, which is not optimistic for attributes that contain reference types.6.3.1 prototype chainThe prototype chain implements the principle of inheritance: Use a prototype to have one reference type inherit the properties and methods of another reference type. Review the relationship of a constructor, prototype, and instance: each constructor has a prototype object, and the prototype
Programming | Object polymorphism
Polymorphism is defined as the ability of an object to invoke that method when an object is passed as a parameter at run time. For example, a class that defines the method "draw", inherits the class to redefine the behavior of the "draw" to draw a circle or a square, so that you have
: Note The Serialversionuid inconsistency throws a serialized run-time exception.11. The "forced" construction method prohibits any business logic from being added, and if there is initialization logic, put it in the Init method.12. The "force" Pojo class must write the ToString method. When using the IDE's tools:source> generate ToString, if you inherit another Pojo class, be careful to add super.tostring to the front. Description: When the method execution throws an exception, you can directly
equal.If the comparison function is not passed in, it will turn the values all into strings and order alphabetically.9. Flip an array: You can use reverse methods to flip an array. This function is not required, the callback function is used directly. NewArray = Array.reverse ();10. Merging arrays: concat methods can be used to merge the contents of two arrays into an arrayconcatThe parameter of the method should be an array. The array in the parameter is stitched to the back of the original ar
Original article: http://www.altdevblogaday.com/2012/04/26/functional-programming-in-c/
Author: John Carmack
-Pan Hong
-March January 2013
-Email:Popyy@netease.com
-Weibo.com/panhong101
Michael feathers @ mfeathersObject-oriented code can be understood by encapsulating the activity part. Function programming minimizes the amount of activity to make code unders
the execution has completed.Input Sample:3 31 1 1 2 0 1 2 1-1-11Sample output:7time limit: 500ms memory limit: 32000kb Import Java.util.scanner;public class Cellmachine {static Scanner in = new Scanner (system.in); static int width = 0;//width st atic int height = 0;//height static int[][] field_old;//old grid static int[][] field_new;//new mesh static int times;//steps Public stat IC void Main (string[] args) {//First enter two positive integers with a range of [3,102], which in turn represent
Moonphases
(read/write) Number of lines of code
Posted Blog Volume/Blog comments number
Classroom/Spare time study (hours)
The most satisfying programming task
First week
20/5
1/1
6/4
Experiment a job
Second week
150/30
2/1
6/5
Lab two job integer programming
Third week
synchronization (thread-safe) when two or more processes concurrently manipulate the same resource, only one thread is allowed to access at the same time, and other threads wait.14, the keyword synchronized synchronization, can be used as a modifier of the method, indicating that when a thread is accessing the resource, other processes can only wait. When the thread ends access to the resource, other threads are allowed access.15, the result of synchronization: Data security, low efficiency.16,
Link to the PHP object-oriented programming getting started tutorial, and the OOP Getting Started Tutorial. Link to the PHP object-oriented programming getting started tutorial, the OOP Getting Started Tutorial PHP official learni
Object-oriented programming (OOP) is a fundamental skill of our programming, and PHP5 provides good support for OOP. How to use the idea of OOP for advanced programming of PHP is very meaningful for improving PHP programming abili
Transferred from: http://blog.snsgou.com/post-41.htmlObject-oriented programming (OOP) is a fundamental skill of our programming, and PHP5 provides good support for OOP. How to use the idea of OOP for advanced programming of PHP is very meaningful for improving PHP programming
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