title: How can I access a value in a class which was set in another class in objective c?
body: <p>I have two classes, classA and classB.<br>
   I navigated from classA to classB. 
  I set a value
   <code>Temp = 0;</code> in classB.<br>
  I popped back to classA from classB.<br>
  Now, I need to access <code>Temp</code> value in classA.<br>
  how can I get that without setting the value in AppDelegate calss ?</p>