How to add the library file (.jar) in the eclipse and build the path?

1. Download the .jar file.
2. Create a lib folder as shown in the picture below:

3. Paste the downloaded .jar file to the lib folder.

4. Now build the path  by right click the on your project
        –> select “Build Path”
                 –> “Configure Build Path” 
                         –>click “Libraries” tab –> click “Add JARs”.
                                 Choose the archieves to be added to the build path.
 Done