How to use selected .class from .jar

Question

I am developing an API(.jar) to be used with Android App, I have constrain on size of .jar file after build.

I am using several dependent libraries(.jar) files, but not completely; hardly 5-6 class files from 200.

How can I use the selected .class files from libraries and dependent .class files?

Answer 1

Proguard automatically does this. Configure proguard via Gradle: http://proguard.sourceforge.net/manual/gradle.html

Answer 2

I'm not quite sure if this is what you are looking for but you can use -cp to run a specific class in your jar file

example:

java -cp myjar.jar package1.class1