Eclipse is an open-source, Java-based, extensible development platform. For its part, it is just a framework and a set of services for building a development environment through plug-in components. Eclipse comes with a standard set of plugins, including Java development tools (Java Development kit,jdk), which is an essential Java development environment for Java development.
Start Eclipse, the first time you start the software, you will be prompted to select a workspace (WorkSpace), you can create a new folder on your hard disk as your workspace, and this folder will save all the source code you have written.
How to build a Java project see:
http://blog.csdn.net/21aspnet/article/details/18815397
Http://jingyan.baidu.com/article/63f236281dc6670208ab3dc8.html
How to run Eclipse HTML and js files???
Right-click the HTML file--->[open with]--->[web browser].
JS files are generally referenced in the HTML file, so want to execute, create a new HTML file, reference and use JS file. Ibid., run it.
HTML files are built in the Web project.
Use Eclipse to build a Java Engineering and Web project