It shows also how to change the text of a TextView into the data of the variable that was passed into the activity. 1. Open another Activity or Service from the current Activity 2. Pass data between Activities and Services 3. Delegate responsibility to another application. More Video's How To Create Rounde Button In Android Studio https://youtu.be/plQIpqBcdQE How To Add Background Image And Action Bar Remove In Android Studio https://youtu.be/zf7HYwriozM HOW TO DOWNLOAD AND INSTALL JAVA JDK ON WINDOWS 7/8/10 |32/64 BIT| https://youtu.be/1M5mP_7jeIQ Hope that was a great tutorial for you. Hopefully you like this video then don't miss subscribe please subscribe.