Several basic concepts of java learning

xiaoxiao2021-03-06  90

1: Basic concept DK1.4: Java programming environment, development package A, Sun provides some library weblogic: a J2EE server, powerful Tomcat: a JSP server, free JBoss4: is also a J2EE server, free, but follow Sun's standard a bit conflict Apache: An application server, similar to IIS, can be used with Tomcat, JavaBean: It is actually a Java class, in Java, the effect is large, consisting of setxxx (), getxxx () method, component Development, such as you can write database operations into a JavaBean, struts: a framework, far-use MVC idea, generally use and develop large and medium-sized websites, classic plug-in package CDT: make Eclipse support C development

2: HelloWorldPublic Class HelloWorld {public static void main (String [] args) {system.out.println ("Hello World");}}

3: Learning direction suggests learning Java must learn based on the Struts framework, after all, there are many systems now, this is this, Java is good, it is estimated 3-6 you, let you make money, no problem

Proficient in Java, Dynamic Web JSP, SQL2000, Understanding the Struts Architecture, knowing Tomcat knows JavaScript;

JSP Javabean MySQL TOCAMT has done a forum

J2EE is very good. As a development environment, if you use a classic configuration: JBuilder WebLogic Oracle, it is very comfortable, but the price is amazing. This configuration is mainly for large or ultra-large applications, hardware requirements are also high, and is not recommended for domestic small and medium-sized applications. Although domestic developers have long been accustomed to the D version, the author thinks it is necessary to prevent it in order to join the OpenSource ranks as soon as possible, and promote the development of domestic software industry.

The Eclipse, JBoss, MySQL recommended by this article is highly open source software, and it is very practical.

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