title: How to use zxing core.jar into my own app
body: <p>I'm developping an app, and i need to store the product's barcode,so i need to read them.
  I'v been reading other posts about what should i do to read a barcode without having to install BarcodeScanner.
  I saw the post:</p>
  
  <p>"The complete source code is available from the ZXing project. You want to build core.jar from core/ and put it in your Android lib/ folder to include the core decoder in your app. You do not want to include javase. You can look to the code in android/ as it is the source to Barcode Scanner, but as the authors we'd suggest you not just copy and paste it."</p>
  
  <p>But,I am beginning at Android and don't know HOW exactly to do what it describes. Could someone be a little more specific how i do that?</p>
  
  <p>Sorry if it is a stupid question.</p>