title: Need EqualIgnoreCase when getting index
body: <pre><code>String s ="Ganesh";
  
  System.out.println(""+s.indexOf("ga"));
  System.out.println(""+s.indexOf("Ga"));
  </code></pre>
  
  <p>When I run this, I get <code>-1</code> for <code>s.indexOf("ga")</code> and <code>0</code> for <code>s.indexOf("Ga")</code></p>
  
  <p>I want to get <code>0</code> for both.</p>
  
  <p>How to achieve this?</p>