title: Android construct json with dynamic key name and value
body: <p>i have to construct a json request with dynamic key below is the sample i need to create, i have set "dynamic_key" from a response which i get it from other service and "dynamic_value" from user interaction, i'm not sure how to change the "dynamic_key" value everytime, could someone tell me how to do it. TIA</p>
  
  <pre><code>"qty":{
     "dynamic_key":"dynamic_value"
  }
  </code></pre>