This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
this code make interface between nfc reader and my web application any way i have value of nfc card (id) in the void method and i want to get it again i know that void return null but there are not any solutions for that . I tried to declare id as global variable but i have null