title: How to Update EditText Value in another Activity while using Constant Class to store data
body: <p>I need some guidance</p>
  
  <p><strong>Question:</strong></p>
  
  <p>I want to update quantity of an Item in ProductInformationActivity using EditText in CartActivity</p>
  
  <p><strong>Overview of my program:</strong></p>
  
  <p>I am using Constant class in ProductInformationActivity to store information for an Item like: Title, Qty, Cost, Total and then showing these details in CartActivity.</p>
  
  <p><em><strong>View these screen shots:</em></strong></p>
  
  <ol>
  <li><p>ProductInformationActivity : where i am accepting quantity by user first time.</p></li>
  <li><p>CartActivity : where i want to allow user to update quantity of an item, which he has entered in ProductInformationActivity [here i am using EditText to accept new quantity]</p></li>
  </ol>
  
  <p><strong>ProductInformationActivity.java:</strong></p>
  
  <p>Whenever user click on Add Order button, i am storing Item Title, Qty, Cost and Total in Constant Class and then showing these values in CartActivity</p>