Java Archive (JAR) File Format

To create a JAR file

jar cf jar-file input-file(s)

To view the contents of a JAR file

jar tf jar-file

To extract the contents of a JAR file

jar xf jar-file

To extract specific files from a JAR file

jar xf jar-file archived-file(s)

To run an application packaged as a JAR file
(version 1.1)

jre -cp app.jar MainClass

To run an application packaged as a JAR file
(version 1.2 — requires Main-Class
manifest header)

java -jar app.jar

To invoke an applet packaged as a JAR file

<applet code=AppletClassName.class
archive=“JarFileName.jar”
width=width height=height>
</applet>