title: Unescape url in java
body: <p>I am trying to unescape a URL in java.</p>
  
  <p>Is there some tool or library for that ?</p>
  
  <pre><code>example : filter=Screen+Refresh+Rate%7C120HZ%5EScreen+Size%7C37+in.+to+42+in.
  </code></pre>
  
  <p>I need this in the normal form.</p>