How to put a jar in classpath in Eclipse? [duplicate]
As of rev 17 of the Android Developer Tools, the correct way to add a library jar when.using the tools and Eclipse is to create a directory called libs on the same level as your src and assets directories and then drop the jar in there. Nothing else.required, the tools take care of all the rest for you automatically.
First copy your jar file and paste into you Android project's libs folder.
Now right click on newly added (Pasted) jar file and select option
Build Path -> Add to build path
Now you added jar file will get displayed under Referenced Libraries. Again right click on it and select option
Build Path -> Configure Build path
A new window will get appeared.Select Java Build Path from left menu panel and then select Order and exportEnable check on added jar file.
Now run your project.
More details @ Add-JARs-to-Project-Build-Paths-in-Eclipse-(Java)