In one line:
Long.toHexString(Double.doubleToLongBits(Math.random()));
http://mynotes.wordpress.com/2009/07/23/java-generating-random-string/
In one line:
Long.toHexString(Double.doubleToLongBits(Math.random()));
http://mynotes.wordpress.com/2009/07/23/java-generating-random-string/