The last time I read this book, I hurried through it. Recently I was not very busy. I revisited it and wrote my notes ~..
If you are interested, you can buy one. I think this book is quite good.
Because most of them are written on mobile phones when
Private Members in javascriptjavascript private member
Douglas crockfordWww.crockford.com
Translation: Yuan Xiaohui (blog.csdn.net/uoyevoli /)
Javascript is the world's most misunderstood programming language. Some believe that it lacks the
Categories allows you to add new methods for a class (you cannot add new data members), instead of using inheritance methods. In addition, you can do this even if there is no implementation source code for a class. Example:I. Example 1:Add several
Origin: http://tutorials.jenkov.com/java-reflection/private-fields-and-methods.html
Despite the common belief it is actually possible to access private fields and methods of other classes via Java reflection. it is not even that difficult. this can
1. The default value cannot be set for the form parameter in Java
Solution:
In the method, give the parameter some initial values or write them as classes and use different constructors.
For example:
Public void yourmethod (stringa, string B
This example describes the private function invocation method in Python. Share to everyone for your reference, as follows:
Like most languages, Python has a private concept:
① private functions cannot be called from outside their modules② Private
This article provides a detailed analysis of the php object-oriented publicprivateprotected access modifier. For more information, see
PHP has three access modifiers:Public (public, default)
Protected (protected)
Private)
Public (public, default) in
Php object-oriented publicprivateprotected access modifier. This article provides a detailed analysis of php object-oriented publicprivateprotected access modifiers. For more information, see the following three access modifiers in PHP: publ this
Outline:
Introduction
Notes compared with the C Language
Objective-c advanced features
Development Tool introduction (cocoa toolkit features, framework, source file organization; XCode usage Introduction)
Introduction:
1. objective-c is an extension
I believe everyone has heard of the story of female creation, but the details may not be too clear. I will give a brief description below. Please listen carefully, this has a great relationship with the theme we are going to talk about today.
Nvwa
Use of Public, protected, and private in objective-C
Similar to C ++, the use of public, protected, and private exists in objective-C, but the forms are different. Here is a brief summary.1. @ public, @ protected, @ privateI personally
We have a class A that calls its own method F in the constructor.
Now there is a Class B that inherits a and overwrites method F.
Then, when constructor B calls the constructor A, does F in the constructor a refer to A: f or B: F?
In C ++, The
Javascript is the most misunderstood in the world.Programming Language. Some people think that it does not have the ability to "hide information", because JavaScript objects do not have private variables and methods. This is a misunderstanding.
1. What is the difference between # import and # include? What does @ Class mean?
@ Class is generally used when the header file needs to declare an instance variable of this class. In the M file, you still need to use # Import
The advantage of #
Focus on private and protectedPublic
The default value is public, which can be accessed globally.Private
C ++, "private" indicates "private to this class", but Ruby prefers "private to this instance ".In C ++, As long as class A can access Class A,
Although we usually think that using the JAVA reflection mechanism to access private fields and private methods of other classes is feasible, it is not that difficult.
Note:This code is valid only when it is run in a separate JAVA program, just
9. EncapsulationEncapsulation is one of the three main features of object-oriented programming. encapsulation is to combine object attributes and services into
Independent of the same unit, and try to hide the internal details of the object, which
Encapsulation is one of the three main features of object-oriented programming. encapsulation is to combine object attributes and services into an independent unit and conceal the internal details of objects as much as possible.
9.
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