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First, let's give a question. What is the output result of the following program? Java codeImport java. util. Date;Public class Test extends Date {Public static void main (String [] args ){New Test (). test ();}Public void test (){System. out. println (super. getClass (). getName ());}} Import java. util. Date;Public class Test extends Date {Public static void main (String [] args ){New Test (). test ();}Public void test (){System. out. println (

2006: [NOI2010] Super piano time limit:20 Sec Memory limit:552 MBsubmit:2222 solved:1082[Submit] [Status] [Discuss] DescriptionSmall Z is a small famous pianist, recently Dr. C gave a small z a super piano, small z hope to use this piano to create the world's most beautiful music. The super piano can play n notes, numbered 1 to N. The magic of the I note

This is the "writer programmer" of the Super Table team, Kai the creation of the super form from the perspective of the team members. "Miss Chen" is the name of the team founder.Flurried Suddenly, time has come from the end of the world 2015 years. It feels lucky not to be the last human being. With teacher Chen come out together for super form fronts, from Beiji

Java Tour (vi)--single case design pattern, inheritance extends, aggregation relationship, child parent class variable relationship, Super, overlay Java also more and more deep, everyone refueling it! Let's take a step I. Single-CASE design mode What is design mode? There are 23 design patterns in Java, the most effective way to solve a problem Single Case design mode Resolves a class that only

Python's method of calling the parent class can be implemented in two ways: by calling the parent class construction method, or by using the Super function (do not mix them).The Code "super (Foochild,self). __init__ (xxx,xxx)" often appears when using "super". So how does super () __init__ () really work?To facilitate

------------- - Zpoor in 0 the Mans the - About the the the */Don't Panic (cool analysis):One, call another construction method through this, the This (argument list), only in the constructor, not elsewhere, and to be placed in the first row of the construction methodIn the case of the parameter of the method or the name of the local variable and member variable in the method, the member variable is masked and the member variable is referenced by the this. Member variable. If you don't have

The Super 3GP Converter is a powerful and easy-to-use 3GP video conversion software that converts almost all audio and video formats to the 3GP format supported by mobile phones. With super 3GP converters and no computers, you can watch movies and videos in all formats on your phone anytime, anywhere! 1, first download and install the Super 3GP Converter 2, dou

When initializing a subclass, the constructor of the parent class must run Because there is an implicit statement super () in the first row of the constructor of the subclass, all constructors of the subclass default to the first row of super (); Subclass calls the parent class constructor Super (parameter), the subclass calls the parent class general method:

Super key: An attribute set that uniquely identifies a tuple in a relationship is called a hyper-key of a relational patternCandidate key (candidate Key): A super-key that does not contain extra attributes is called a candidate keyPrimary key (primary key): A candidate key program primary key that the user selected as a tuple identityFor example, a small range of people, without the same name, consider the

Objective-c's recommended Init method is as follows:-(ID) init{if (self = [super init]){To initialize a subclass by adding a property}return self;}Here are a few questions,1. The role of [Super Init]:The object-oriented embodiment, first uses the parent class's Init method to initialize the parent class part property of the subclass instance.2. Why should self be assigned a value of [

Inquisitive objective-c Runtime (1)-Self Super-chun Tips Chun TipsFocus on iOS development Inquisitive objective-c Runtime (1)-Self Super PrefaceAbout OBJECTIVE-C Runtime a good document: Understanding the OBJECTIVE-C RuntimeThe address is: http://blog.cocoabit.com/blog/2014/10/06/yi-li-jieobjective-cruntime/OBJECTIVE-C Runtime source is open source, for: http://opensource.apple.com/tarballs/ob

II. This Super In Previous exampleWe have discussed various static usage. Using static to define methods or members provides some convenience for programming, to some extent, it is similar to the global functions and global variables in C language. However, it doesn't mean that with this convenience, you can use it everywhere. If so, you need to seriously consider whether you are using object-oriented programming, whether your program is object-orien

Guide block Located in the first sector of the file volume, which is 512Byte is the Boot Code of the file system, which is unique to the root file system.The byte is null. Data Recovery Super Block(Superblock) Data Recovery A file system is always defined by its super block. Therefore, when a file system is created, the super block is also created. It contains s

Summary of important PHP super global variables 2008-07-14 16:53:03Label: global variable [Push to technical circle ] PHP has nine predefined variable arrays, which are summarized as follows: 1. $ _ Server The $ _ server super global variable contains information created by the Web server. It provides information about the server and the customer configuration and the current request environment. In $ _ s

The Super keyword is similar to this, which is used to represent an instance of the current class, and super is used to represent the parent class.Super can be used in subclasses, by Dot (.) To get the member variables and methods of the parent class. Super can also be used in subclass subclasses, where Java can automatically trace back to the upper class.The beh

The Super keyword is similar to this, which is used to represent an instance of the current class, and super is used to represent the parent class.Super can be used in subclasses, by Dot (.) To get the member variables and methods of the parent class. Super can also be used in subclass subclasses, where Java can automatically trace back to the upper class.The beh

The new IT wave has arrived, the Super fusion is one of many tuyere, in recent years has become the IT industry attention topic. The current hyper-fusion architecture has become the main direction of many manufacturers exerting force, the market competition is increasingly fierce. Although the concept of hyper-fusion has been hyped for at least two years, there are still a lot of vague definitions and understandings on the market, and there are differ

Absrtact: In Java We will often use super and this usage, now I mainly to distinguish between super. And this and Superl () and this () the difference between them to know and understand:The usage of 1.this is in Java:①:this.:this refers to the current object, which can manipulate all the properties and methods inside the current class and the properties and methods that the parent inherits to allow access

Many users encounter the same problem in the super capacitor, that is, how to calculate the discharge time of a certain capacity super capacitor when a certain current is discharged, or according to the discharge current and discharge time, how to choose the capacity of the super capacitor, the following is a simple computing company. Based on this formula, you c

Enable super administrator privilege in Windows 7)(08:01:40) Use a superuser to log on to Windows 7 Login to Windows 7 with a Super User is the same as that of Vista. After the system is installed, a user is created and the Administrator permission is used, while the Administrator is disabled. In most optimized systems, the Administrator is used to log in directly. Although it is administrator permissio