title: How can I print HashMap<String, ArrayList<Integer>>?
body: <p>I have tried this</p>
  
  <pre><code>ScreenDumpParser dump = new ScreenDumpParser();
      Map btn_bound = dump.parse();
  
      Iterator iterator = btn_bound.keySet().iterator();
  
      while (iterator.hasNext()) {
         String key = iterator.next().toString();
         List&lt;Integer&gt; value = btn_bound.get(key);
  
         System.out.println(key);
      }
  </code></pre>
  
  <p>but this line </p>
  
  <pre><code>List&lt;Integer&gt; value = btn_bound.get(key);
  </code></pre>
  
  <p>gives error:</p>
  
  <pre><code>Type mismatch: cannot convert from Object to List&lt;Integer&gt;
  </code></pre>
  
  <p>I need to print all the values along with the key in one single row.</p>