title: How to print an array of ArrayList in Java?
body: <p>I have created a array of <code>ArrayList</code> but now I want to access its elements and sort them and print them, please help me to find out a way </p>
  
  <pre><code>  ArrayList&lt;Integer&gt;[] lists = (ArrayList&lt;Integer&gt;[])new ArrayList[20] ;
    for(int i=0;i&lt;20;i++){
      lists[i]=new ArrayList&lt;Integer&gt;();
      lists[i].add(i+i*2);
      lists[i].add(i+i*3);
      lists[i].add(i+i*4);
      lists[i].add(i+i*5);
    }  
     System.out.println(lists);
  </code></pre>
  
  <p>output:- </p>
  
  <pre><code>[Ljava.util.ArrayList;@15db9742 
  </code></pre>