CODEWITHSUNDEEP
java
Shekhar
Shekhar

Reputation: 55

Create .jar files in java without using IDE

I am trying to create .jar files in java which can be used by including it in other projects. It doesn't contain any main but only classes and methods. I am using th following command to create .jar file from command line 

jar cf firstjar.jar *

I am including the jar file in my project but still the class is not available in the project. What's the problem in this.

Upvotes: 0

Views: 1312

Answers (1)

Jon Skeet
Jon Skeet

Reputation: 1502616

My guess is that you've got a problem with the directory structure.

Suppose you have a class like this:

package org.foo;

public class Bar {}

There should be Bar.class flie in a directory org/foo. That structure has to be in the jar file as well - so you should go to the directory containing org and run:

jar cf firstjar.jar org

(Or whatever your top-level package name is.)

If you just include the classfiles from the foo directory then Java's expectations of where to find things will be invalid.

Upvotes: 1

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