title: How to get data from a URL?
body: <p>I have data provided in a website and it is presented as in the following image:</p>
  
  <p><img src="https://i.stack.imgur.com/MD7Of.jpg" alt="enter image description here"></p>
  
  <p>This website offers values of some parameters which are updated every while.
  Now I want to retrieve these data according to the column name and the row number in the Android app, I know how to open http connection. But unfortunately I have no idea from where should I start and how to read the data provided in the image.</p>