protected private

1. Three main features of object-oriented: encapsulation, inheritance, polymorphism, (abstract (extended))2, 00A: Analysis, OOD: Design, OOP: programming.3. Encapsulation: Information concealment, encapsulation, all functions and methods, properties

Process orientedClasses and objectsObject: Anything can be called an object, something instantiated by a classClass: Something abstracted from all the same objectsTo define a class:classren{ Public$Name;//member Variables protected$age;

Reprint: http://www.cnblogs.com/younggun/archive/2013/07/16/3193800.htmlSteps to use:Step one, introducing the namespace into the spring configuration fileXmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"xmlns:tx=

43. Several ways of inheriting:A: Common inheritance, protection of inheritance protected, private inheritance. The latter two types of inheritance change the original access level.44. Deep copy and shallow copy:A: A simple understanding, deep copy

Describe the difference between a thread and a process? What is the maximum amount of memory that a single process on Windows can access to a Windows service whose life cycle differs from the Standard EXE program? Is it the same as the maximum

Mailbox send finally solved today, never to the meeting with 3 nights to finally solve, there are many problems are not code problems, but the mailbox settings on the problem. Let me explain in one by one below.1. The principle of email sending, I

Object-oriented Thinking, object-oriented Object-Oriented Programming (Object OrientedProgramming, OOP, Object-Oriented Programming) is a computer programming architecture, one basic principle of OOP is that a computer program is composed of a

Member Inner classes in JavaThe most common inner class is the member inner class, also known as the ordinary inner class. Let's look at the following code:The result of the operation is:As we can see from the code above, the use of the members '

Reflection resolves an issue in which objects and classes are not predictable at compile time, and information about the object and class is not known until the program runs.When two people collaborate on development, you can do the initial

1. What is the object-oriented program design idea?A: The data structure and the data structure of the method of operation to encapsulate the formation of a set of objects.2. What is a class?A: Classify some objects that have commonalities to form a

Sandbox, process, and permission In Linux, a user ID identifies a given user. on Android, a user ID identifies an application. The application is assigned a user ID during installation. The user ID remains unchanged during the lifetime of the

The first article in the object-oriented series of browser PHP-class and object-oriented first article× Contents [1] class [2] member attributes [3] member method [4] object [5] member access before [6] this Object-Oriented Programming (OOP) is a

Hello, the C ++ (36) ginseng is good and cannot be used as a meal! How are the 6.3 categories object-oriented?How is class 6.3 object-oriented? Class is a product of the combination of C ++ and object-oriented thinking. as a carrier of

Recently in preparation for the fall school recruit, some common technical issues to make a summary! Hope to help everyone!1. What is the difference between object-oriented and process-oriented?Object-oriented is the decomposition of the transaction

1. Quick Start case :Case 1 :New Camera ();  $camera 1->start ();  $phone 1=new Phone (); $phone 1->start ();? >effect :The camera starts working and the phone starts to workfrom http://localhost/interface/interface01.php >2. Basic syntax used by

Original from: Http://www.cnblogs.com/xwdreamer/archive/2012/06/03/2532832.html1. HashMap Overview:HashMap is a non-synchronous implementation of a hash table-based map interface (Hashtable is like HashMap, the only difference being that the method

The most common inner class is the member inner class, also known as the ordinary inner class. Let's look at the following code:The result of the operation is:As we can see from the code above, the use of the members ' inner classes is as follows:1.

Simple Summary ~ Secondary quick Recall ~First, Jvm1,java class loading mechanismThe Java program consists of multiple class files, which are loaded on demand.The dynamic extension of Java is implemented by dynamic loading and dynamic linking at run

Interfaces and internal classes provide us with a more structured approach to separating interfaces from implementations. Abstract classes and interfaces are two mechanisms for defining abstract concepts in the Java language, and it is their

Transferred from original: http://www.yiibai.com/java/java_basic_syntax.htmlWhen considering a Java program can also be defined as a collection of communication objects by calling the other party's method. Now, let's briefly see what classes,