title: stop executing a function without exiting the application
body: <p>Following is my code:   </p>
  
  <pre><code>try 
  {
      usrID=client.callString("VerifyUsrnameAndPswd", userName.getText().toString(), password.getText().toString());
  }
  catch (JSONRPCException e)
  {
      Toast.makeText(this, "No internet connection", Toast.LENGTH_LONG).show();           
      Log.e("error", "client.callString exception: "+e.toString());
      e.printStackTrace();
  // If this condition is true, then no need to go ahead
  }
  // some steps of remaining code
  </code></pre>
  
  <p>I do not want to execute the steps after the catch block, when there is no internet connection. But I don't even want to exit the application. Hence cannot use <code>final()</code>.</p>
  
  <p>Please suggest me some function to stop the further execution without exiting the application.</p>