title: How to change text at the top of your Android-app?
body: <p><img src="https://i.stack.imgur.com/tOO8V.png" alt="The text NWZC 2016"></p>
  
  <p>I wanna change like you see in the picture above the text <strong>NWZC 2016</strong> at the top of my app, it's the title of my app. I have 5 different activities, and in every activity I want some other text and not this "NWZC 2016". How can I do that? </p>
  
  <p>I've looked in the files styles.xml and strings.xml and AndroidManifest.xml for trying things. I couldn't find anything clear on the Internet.
  Can someone help me? Thanks!</p>