I have framed this as a , which is useful if you are documenting a system, pitching an idea, or writing a user guide.

: Contains legacy toolkits like the Sun Java Wireless Toolkit 2.5.2 for mobile application development.

A Java Archive is a compressed file container that stores a collection of Java class files, libraries, and other resources. The JAR file format is based on the ZIP file format, with some additional metadata and structural elements.