a collection of WAR files, JAR files (EJBs), the related files and libraries, and the application
a Java archive (JAR) file and contains as entries nested Web Archive (WAR) files, Resource Archive (RAR) files, EJB archive (EJB JAR) files, and other Java archive (JAR) files
a standard JAR file with an
a top level archive that contains Enterprise JavaBean Jar and War archives
Enterprise Archive. The J2EE-format file containing the project resources and executable code for a HATS application.
The J2EE-format file that contains the Integration Objects, other Java objects, and configuration information for an application. .ear stands for Enterprise Archive.