title: Traversing Nested JSON file with json.simple
body: <p>I am new to JSON and I am learning using the json.simple library. I can't figure out how to access the values in the nested objects or arrays. Here is a piece of the JSON file that I am working with:</p>
  
  <pre><code>{
     metrics: {
        steps: {
           min: 0,
           max: 140,
           sum: 1161,
           summary: {
              max_steps_per_minute: null,
              min_steps_per_minute: null
           },
           values: [
              0,
              0,
              0,
              0,
              0,
             13,
              0,
              0,
              0,
  </code></pre>