title: compare string array using collection
body: <p>I have two String arrays a,b. </p>
  
  <pre><code>String a [] = {"one","two","three"};
  String b [] = {"one","Two","Three","four"};
  </code></pre>
  
  <p>I need to check whether both arrays are same or not , with case Insensitive .
   I know , the following piece of code is perfect for case sensitive.   </p>
  
  <pre><code>List &lt;String&gt; l1 = Arrays.asList(a);
  List &lt;String&gt; l2 = Arrays.asList(b);
  System.out.println(l2.containsAll(l1));  
  </code></pre>
  
  <p>Is there any other way to compare two string array (case Insensitive ) using collection?</p>