Database: E.g., Open-source MySQL, Apache Derby, mSQL, SQLite, PostgreSQL, OpenOffice’s Base Commercial Oracle, IBM DB2, SAP SyBase, MS SQL Server, MS Access and others. HTTP Client (or Web Browser): E.g., Internet Explorer (MSIE), FireFox, Chrome, Safari, and others. HTTP Server: E.g., Apache HTTP Server, Apache Tomcat Server, Microsoft Internet Information Server (IIS), nginx, Google Web Server (GWS), and others. Examples of webapps are google, amazon, ebay, facebook and twitter.Ī webapp is typically a 3-tier (or multi-tier) client-server database application run over the Internet as illustrated in the diagram below. IntroductionĪ web application (or webapp), unlike standalone application, runs over the Internet. You can check your JDK version via command “javac -version”. 
If your JDK is below 1.7, upgrade it (See JDK How-To). Take note that Tomcat 8 requires JDK 1.7. This installation and configuration guide is applicable to Tomcat 7 and 8, and possibly the earlier versions.
This practical can be completed in a 3-hour session. How to Install Apache Tomcat 8 (on Windows, Mac OS, Ubuntu) and Get Started with Java Servlet Programming
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