Assume `a.class` is packed into `a.jar`
If both are available in the same folder, then the below command searches for the class in the jar than current folder.
$ java a
search for `a.class` in `a.jar`.
If not found then takes the `a.class` in the current folder.
JAR file got higher precedence. So careful with your updates or modifications to the class.
If you didn't jar it again then `java` uses the old jar only even though the new class file is existing in the current folder. And you end up in wondering about the unaffected changes.
If both are available in the same folder, then the below command searches for the class in the jar than current folder.
$ java a
search for `a.class` in `a.jar`.
If not found then takes the `a.class` in the current folder.
JAR file got higher precedence. So careful with your updates or modifications to the class.
If you didn't jar it again then `java` uses the old jar only even though the new class file is existing in the current folder. And you end up in wondering about the unaffected changes.