Java Archive Hot! Guide
While a JAR holds your classes, it doesn't automatically include the external libraries your code depends on. Developers often have to create "fat JARs" (or "Uber-JARs") to bundle everything together, which can be tricky to configure manually.
JAR files serve as a neatly packed "suitcase" for Java software, offering several technical advantages: java archive
Now, you can run it directly: