how to create simple chatbot in java

Java implements Simple Chat Room instances based on socket This example describes how to implement a simple chat room in Java based on socket. Share it with you for your reference. The specific implementation method is as follows: Chatroomdemo. java ? 1 2 3 4 5

create the desired product object.//Factory role, the core of the simple factory model, which implements the internal logic for creating all instancesclassoperationfactory { PublicStaticOperation CreateOperation (CharOperate) {Operation oper =NULL;Switch(operate) { Case' + ':Oper =NewADD (); Break; Case‘-‘:Oper =NewSub (); Break; Case‘*‘:Oper =NewMul (); Break; Case‘/‘:Oper =NewDiv (); Break;default: Brea

Servletexception { if (Servletname.equals ("servletName1")) {return new Service1 (); } else if (servletname.equals ("servletName2")) {return new Service2 (); } else{ throw new Servletexception ("No such servlet");}} The above factory class does not throw away the tedious if else, but the idea of using a simple factory still solves some problems. A simple factory is a very

In the previous article to introduce the MyEclipse connection MySQL database method, through this article to introduce how to access the MySQL database in the Java program data and simple operation, details please see below. Create a Javaproject and enter the following Java code: Package link; Import java.sql.*

The purpose of this tutorial is to use a separate layer written in Java to access the tables in the database, which is often called the data Access Layer (DAL) The biggest advantage of using the DAL is that it simplifies access to the database by using several methods like insert () and find (), rather than always doing a link first and then executing some queries. The layer handles all database-related calls and queries internally. Creating a Data

the JDK API's interpretation of this class "Every Java application has a runtime class instance that enables the application to connect to the environment it is running, and the current runtime can be obtained through the GetRuntime method." The application cannot create its own instance of the runtime class. "There are two points in this passage that are important:1. Each application has a runtime class i

I have been studying the design model these days. After reading the book, I have to write some simple examples :-) So, from today on, I have carefully written some simple Java code implemented in pure design mode. First, I would like to give a simple understanding of the idea of design mode. So that you can use it corr

socket. in Java, Java uses java.net. socket. When you want to build a socket, you just need to call its constructorPublic socket (string host, int port), where host represents the address or name of the target host, and port represents the port, such as 80. When we create a socket instance, we can communicate. If you want to communicate based on bytes, you can c

A simple way to test JPA entities in a Java SE environmentFor software quality reasons, all the code we write is theoretically tested. JPA testing is not as convenient as a normal component, because JPA involves a database, so integration testing is essential, and a test framework like Arquillian can handle more complex integration tests, but its configuration is a bit more complex, so this article focuses

separate encapsulation. Encapsulates a task into an object based on object-oriented thinking.2, avoids the limitations of Java single inheritance. Therefore, the second way to create threads is more common.Example 1:Example 2:Example 3:The start () and run () differences for thread in Java:1) Start:Start the thread with the Start method, and actually implement m

(String [] args) {int Port = 12345; // Port number, because this is a test, therefore, do not use common ports // create two sockets ServerSocket server = null; Socket client = null; try {server = new ServerSocket (Port); // The server starts to listen to System. out. println ("The WebServer is listening on port" + server. getLocalPort (); while (true) {client = server. accept (); // run new CommunicateThread (client) in multiple threads ). start ()

is : Artifactid + version in Pom.xmlPom.xmlProjectxmlns= "http://maven.apache.org/POM/4.0.0"Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"xsi:schemalocation= "http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> modelversion>4.0.0modelversion> groupId>Com.software.wggroupId> Artifactid>FirstmvnArtifactid> Packaging>JarPackaging> version>1.0-snapshotversion> name>Firstmvnname> URL>http://maven.apache.orgURL> Dependencies> Dependency> groupId>Junitg

type erase method is currently used.Ii. Methods of Settlement1, very simple, no generics. An additional class T is defined, and T contains a ArrayList member variable, which is added to the ArrayList by the public method add of T.2, method One is the solution to my program, for Java generics more general method, class XX http://blog.csdn.net/eric_sunah/article/details/7262486There is no way to overturn the

; } } Ii. comparison of three ways to create threadsWhen using the runnable, callable interface to transcend multiple threads, the advantages are:The thread class simply implements the Runnable interface or callable interface and can inherit other classes.In this way, multiple threads can share the same target object, so it is very suitable for multiple identical threads to handle the same resource, so that the CPU, code and data can be separated

thread locks, its performance does not cause any impact. By using Iodh, we can implement both delay loading and thread safety without affecting system performance, which is one of the best ways to implement Java language single example mode. Enumeration ClassTo implement the single case pattern. Here is a reference to a friend: enumeration of best practices single cases public enum singleton{ INSTANCE; } The advantage of this approach is

Passwordlogin=NewPasswordlogin (); BooleanBOOL =passwordlogin.verify (name, password); if(bool) {/*** Business logic*/ } Else { /*** Business logic*/ } } //Process domain authentication Else if(Logintype.equals ("passcode") {domainlogin Domainlogin=NewDomainlogin (); BooleanBOOL =domainlogin.verify (name, password); if(bool) {/*** Business logic*/ } Else { /*** Business logic*/ } }Else{

In my recent project, I need to use JNI to call C/C ++ compiled programs. Since I was not familiar with JNI, I found many of them on the Internet are implemented based on the VC or vs2008 series. In this way, it is very troublesome to install hundreds of megabytes of VC or several GB of vs for a simple call, because I have been using Dev C ++ for C Development (this Dev is very compact and powerful, but it is unfriendly to auto-completion ), so I deci

() */ @Override public Void Say () { System.out.println ("man"); } } /** * This is factory patter package * * Package com.roc.factory; /** woman * @author liaowp */public class Woman implements Human {/* say method * @see COM.ROC.F Actory. Human#say () */ @Override public Void Say () { System.out.println ("woman"); } Finally write a factory class that is used to create men and women. The first approach is achi

Java image interface development example The jlabel component is used to display text information. The jcheckbox component is used to set text attributes. The Code is as follows:Import java. AWT. borderlayout; Import java. AWT. Font; Import java. AWT. event. actionevent; Import jav