how to implement interface

This document describes the interfaces.My current understanding of interfaces: A defines a specification, so all the classes that integrate this interface need to implement the method specified by her. Can Interface B be integrated? [Interfaces can

Definition:The client should not rely on interfaces that it does not need; the dependency of one class on the other class should be built on the smallest interface. Problem:Class A relies on Class B through interface I, and class C relies on Class

Counter1.java:Import java.awt.*;Import java.awt.event.*;Import java.applet.*;public class Counter1 extends applet {//defines a subclass of an applet class Counter1private int count = 0; Used to accumulate and display in a text boxPrivate button

Multi-state of an interface implementation In the previous post: Javase Introductory Learning 20:java Object-oriented Interface (interface) (i) mentions that the implementation of the interface is polymorphic, thenit A major analysis of the

Original link: http://www.cnblogs.com/xdp-gacl/p/3651121.html The concept of an interface　　Java is only support single inheritance, but there are multiple inheritance in the reality of this phenomenon, such as "Golden Monkey is an animal", The

InterfaceInterface, English is called interface, in software engineering, the interface refers to the method or function for others to call. From here, we can realize the original intention of the Java language Designer, which is the abstraction of

PHP Basic Development Code Example ~ Recently intends to re-pick PHP to develop some small applications, a long time useless PHP, some of the syntax is unfamiliar, this morning wrote three examples, basically the previous PHP reviewed a bit. Basic

C # Interface Interface is usedInterfaceKeyword. For example: interface IComparable { int CompareTo(object obj); } The interface description can belong to anyClassOrStructure. An interface can be composed of methods, properties, events,

1 First of all, say how it works:In the map phase, the input dataset is split into small chunks splites using InputFormat defined by Job.setinputformatclass, while InputFormat provides a recordreder implementation. In this example, Textinputformat

1PHP2 /**3 * @hypo4 Interface attribute: All methods defined in the interface must be public5 interface implementation: An interface can use the implements operator, the class must implement all the methods in the interface, otherwise the fatal

By default, the results of the map output will be sorted by default on key, but sometimes it takes two orders to sort the key while still ordering the value. Let's say two times the sort1, two-time sequencing principleWe divide the two orders into

Reprint: http://atjava.iteye.com/blog/1722501First, let's look at the definition of shallow copy and deep copyShallow copy : Only one object is copied, an array of objects that exist inside the object, or references are not copieddeep copy : Objects,

　　Hp-socket is a general-purpose, high-performance tcp/udp/http communication framework that includes Server-side components, client components, and Agent components that are widely used in tcp/udp/http communication systems in a variety of

Interface function: Refers to the implementation of the interface with a function, so that the call is very simple, this function is an interface type function, this method is applicable to only one function of the interface. Defines a type that

Class object is the root class of a class hierarchy, and each class uses object as a superclass, and all objects, including arrays, implement methods of this class. The 11 methods in this class are described in jdk1.5.1.getClassGetClass ()

Six principles of design mode (4): interface isolation principle Definition:The client should not rely on interfaces that it does not need; the dependency of one class on the other class should be built on the smallest interface. Problem:Class A

First, to talk about final, finally, finalize the difference. Most often asked.Second, Anonymous Inner class (anonymous inner Class) can extends (inherit) other classes, can implements (implement) interface (interface)?Thirdly, the Static Nested

When you cannot directly contact the source code, the same cannot add annotations to the source code, you can use XML to declare slices and introduce new methodsCompactdisc interface Package Main.java.soundsystem; Public Interface Compactdisc {

ASP tutorial. NET Datagridtree down-pull tree implementation method The principle of the down-pull tree output JSON to client client to implement dynamic loading the middle will not and server-side interaction data support on the test thousands of

One:Interface, English is called interface, in software engineering, the interface refers to the method or function for others to call.in encapsulation and interfaces, theprivate keyword encapsulates an internal member of an object. Encapsulated,