java,jar , Using JAR Files

Using JAR Files


Tag: java,jar

So I'm still a noob in Java and I'm experimenting around with a few things.

I recently created a .jar file for my class using jar cvf <name>.jar <source files> and then used that jar to compile my driver class (javac -cp <name>.jar though how do I now run that class using the jar?

I've tried the following 2 commands:
java Driver and,
java -cp <name>.jar Driver.

The first gives me a NoClassDefFoundError for the class used, whereas the latter just gave me a single line error.

Error: Could not find or load man class Driver

What am I doing wrong? Is it possible I'm confusing this for something else?
I'm trying to do as much as I can without the use of any IDE.


You should put jar file and compiler output into classpath and specify main class:

java -classpath "<name.jar>;classes" Driver

EDIT (thanks to Kayaman): If you are running command from linux/unix you have to use ":" as separator (in Windows works ";"). "classes" is a path to folder containing compiler output.


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