title: In Android: How do I get variables/data from one screen to another?
body: <p>In android: I'm trying to take data from one activity/screen to another.</p>
  
  <p>Let's say I'm adding two numbers. I layout my first screen (xml) with 2 EditText views, a couple labels, and an 'OK' button. Now, I want to add the numbers that I've input into the EditText views. Let's say I input 2 and 2 (2 + 2 = 4).</p>
  
  <p>Now, when I hit the 'OK' button, I want a new screen/activity to appear and simply show me the answer (4). Do I use global vars to do this? Any help would be appreciated.</p>