Here you can find the source of charToHex(char c)
public static String charToHex(char c)
//package com.java2s; /*/*from w w w . j av a2 s .co m*/ Description: This utility class is used by the various number formatting CJP's. Inputs: N/A Outputs: N/A Exceptions: None Author: Alex Dedov Date: 9/21/2011 CSW Version: 6.0.0 (c) 2011, 2014 Cisco and/or its affiliates. All rights reserved. This software is released under the Eclipse Public License. The details can be found in the file LICENSE. Any dependent libraries supplied by third parties are provided under their own open source licenses as described in their own LICENSE files, generally named .LICENSE.txt. The libraries supplied by Cisco as part of the Composite Information Server/Cisco Data Virtualization Server, particularly csadmin-XXXX.jar, csarchive-XXXX.jar, csbase-XXXX.jar, csclient-XXXX.jar, cscommon-XXXX.jar, csext-XXXX.jar, csjdbc-XXXX.jar, csserverutil-XXXX.jar, csserver-XXXX.jar, cswebapi-XXXX.jar, and customproc-XXXX.jar (where -XXXX is an optional version number) are provided as a convenience, but are covered under the licensing for the Composite Information Server/Cisco Data Virtualization Server. They cannot be used in any way except through a valid license for that product. This software is released AS-IS!. Support for this software is not covered by standard maintenance agreements with Cisco. Any support for this software by Cisco would be covered by paid consulting agreements, and would be billable work. */ public class Main { public static String charToHex(char c) { return Integer.toHexString((int) c).toUpperCase(); } }