title: search string inside a word in java
body: <p>I want to search a word inside a string :
  For example  let the String be <code>"ThisIsFile.java"</code>
  and let i want to search <code>"File.java"</code> or <code>"IsFile"</code></p>
  
  <p>This is something like sql <code>'like'</code> query  but unfortunately i am not 
  getting that string from database.</p>
  
  <p>Please suggest me any good solution for this.
  Thanks</p>