

It can be used for many purposes on mobile and desktop both. It could be a browser add-on, a game, an application theme, and whatnot. Runtime Environment can read and run the JAR file as a single request. A manifest is a special metafile that controls the behavior of JAR along with containing the information about the files within the file like compiled Java code, also called CLASS files, security certificates, image files, audio files, etc. The manifest in JAR files is their unique feature. They are very much like ZIP files, the only difference being that it is used by the Java Runtime Environment. The archive file is a single file that has other files packed together to decrease storage space, probability of error, and many similar reasons. JAR is the abbreviation for Java Archive files.
