url-encoding tag

How do I decode URLs in Java?

in Javahttps%3A%2F%2Fmywebsite%2Fdocs%2Fenglish%2Fsite%2Fmybook.do%3Frequest_typeThese chordshttps://mywebsite/docs/english/site/mybook.do&request_typeI'd like to change it like this.class StringU...