Objective-C

what is polymorphic. The three major characteristics of object-oriented language, inheritance, encapsulation and polymorphism. Where encapsulation and inheritance are easy to understand, inheritance and polymorphism are the two attributes that

Http://www.cocoachina.com/ios/20141106/10153.htmlIPHONE6/6 plus Screen fit demo (Code bottom processing) (Forum member Satian) httThe project is a IPHONE6/6 plus screen adaptation demo, using a code-writing interface adaptation method to IPhone5

1, the use of random numbers 1), arc4random () more precise do not need to generate the seed immediatelyHow to use:The code for obtaining an integer between 0 and X-1 by Arc4random () is as follows:int Value = arc4random()% x; The code to get an

Objective-c method Overloading-Selector identification plays a decisive roleThe beautiful Life of the Sun Vulcan (http://blog.csdn.net/opengl_es)This article follows "Attribution-non-commercial use-consistent" authoring public agreementReprint

The This in Java can only be used in dynamic methods, not in static methods The self in OC can be used either in dynamic methods or in static methods Description: This objective-c topic is a prelude to learning iOS development, and to

directory of this document Objective First, Introduction Second, Syntax preview Description: This objective-c topic is a prelude to learning iOS development, and to enable programmers with experience in object-oriented language

Knowledge pointsUse of the 1.NSString classUse of the 2.NSMutableString class==========================================NSString1.NSString object vs. C type stringOC string is an object C string that is just a single letter stitchingOC string

The basic conditions of reading in this article are: Basic knowledge of C + +, understanding object-oriented features Read "OBJECTIVE-C 2.0 Program Design (second edition)", "objective-c Program design 6th Edition" or related Foundation

First, inheritanceUpper layer of Inheritance: parent class, inherited lower layer: subclass. Inheritance is one-way and cannot inherit from each other. Inheritance has transitivity: a inherits from B,b inherited from C,a with B and C features and?

A objective-c overview Two object-oriented programming OOP object oriented programming Three classes and objects Definition of class in OC Interface section Implementation part Classes and files

OBJECTIVE-C 2.0 's run-time environment called Morden Runtime,ios and Mac OS X 64-bit programs all run onThis environment, which means that the Mac OS X 32-bit program runs in the old OBJECTIVE-C 1.0 Runtime Environment legacyruntime, here we only

http://www.justinyan.me/post/1624Note: This is a translation of Colin Wheeler's understanding the Objective-c Runtime.Beginners OBJECTIVE-C (hereinafter referred to as OBJC) can easily ignore a OBJC feature--OBJC Runtime. This is because the

Main.m1 #import2 #import "nsstring+trim.h"3 intMainintargcConst Char*argv[]) {4 @autoreleasepool {5NSString *strsource =@"Kenmu, it's me, Wu.";6NSLog (@"" %@" after removing the front and back spaces for "%@"", strsource, [NSString

I. INTRODUCTION of OC(i), the origins of Objective-c and CBorn in the 1980s, Objective-c was invented by Brad Cox to combine the popular, portable C language with the elegant Smalltalk language.Objective-c is an extended set of C languages that,

Transferred from: http://blog.csdn.net/yiyaaixuexi/article/details/29201699Class-dump can be very convenient to export the program header file, not only to let the attackers understand the program structure to facilitate the reverse, but also to

1. invalid: 6_05 (cannot begin with a number) A $ ($ is an invalid symbol ). 2. mybook (openbook, closebook, readbook, takebook, putbook ). 3. [mybook takebook]; [Mybook openbook]; [Mybook readbook]; [Mybook closebook]; [Mybook putbook]; 4. [myboat

Do not repost the labor results of developers Some key concepts of object-oriented programming are mainly focused on syntax related to objective-c Definition classes. The OC object-oriented concept is similar to that of other languages. It is

Objective-C syntax for array objects If the original Yusong Momo article is reprinted, please note: It is reprinted to my independent domain name blogYusong Momo program Research Institute, Original address:

Let's continue to talk about the fraction class in objective-C separation interface and implementation file. If there is a way to set numerator with only one message At the same time, you can set denominator. How nice is that! No problem. By listing

Senior Mac OS X and iPhone developer Robert ClairObjective-C 2.0 getting startedHelping you become a qualified objective-C programmerObejctive-C 2.0 development practices for Mac and IOS Basic InformationOriginal Title: learning objective-C 2.0: a