J2EE defines three types of archives:
1. Java Archives (JAR) - A JAR file encapsulates one or more Java classes, a manifest, and a descriptor. JAR files are the lowest level of archive. JAR files are used in J2EE for packaging EJBs and client-side Java Applications.
2. Web Archives (WAR) - WAR files are similar to JAR files, except that they are specifically for web applications made from Servlets, JSPs, and supporting classes.
3. Enterprise Archives (EAR) - An EAR file contains all of the components that make up a particular J2EE application.
1. Java Archives (JAR) - A JAR file encapsulates one or more Java classes, a manifest, and a descriptor. JAR files are the lowest level of archive. JAR files are used in J2EE for packaging EJBs and client-side Java Applications.
2. Web Archives (WAR) - WAR files are similar to JAR files, except that they are specifically for web applications made from Servlets, JSPs, and supporting classes.
3. Enterprise Archives (EAR) - An EAR file contains all of the components that make up a particular J2EE application.
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