intellij idea - Adding Jar files to IntellijIdea classpath

Question

I have created a new Intellij project. But I can't use the third party jars in my project. I have the jars in a directory structure as follows:
repository/commons-logging/commons-logging-1.0.4.jar
repository/commons-lang/commons-lang-2.1.jar
etc.

I want to add them just by pointing to the repository directory, but couldn't find any ways to add them. But when I am using classes or API from that jars, the editor can't resolve the classes. I have tried from Project Structure but can't configure it.

Answer 1

Go to File-> Project Structure-> Libraries and click green "+" to add the directory folder that has the JARs to CLASSPATH. Everything in that folder will be added to CLASSPATH.

Update:

It's 2018. It's a better idea to use a dependency manager like Maven and externalize your dependencies. Don't add JAR files to your project in a /lib folder anymore.