title: how to format output of Join RDD using java
body: <pre><code>JavaPairRDD&lt;String, Tuple2&lt;Tuple2&lt;String, Integer&gt;, Double&gt;&gt; accountNew = 
          accountRecPair.join(accountCnt).join(accountSum);
  </code></pre>
  
  <p></p>
  
  <pre><code>( Key,   (value))
  ------------------------------
  (12,(ID1,12,1062.0,2),68605.0))
  </code></pre>
  
  <p>i would like myoutput without "(" and ")"</p>
  
  <hr>
  
  <pre><code>ID1,12,1062.0,2,68605.0
  </code></pre>