Convert Byte Array to Hex String in Java

The printHexBinary() method of the DatatypeConverter class accepts a byte array and returns a hex string.

Example

import javax.xml.bind.DatatypeConverter; public class ByteToHexString { public static void main(String args[]) { String sam = "Hello how are you how do you do"; byte[] byteArray = sam.getBytes(); String hex = DatatypeConverter.printHexBinary(byteArray); System.out.println(hex); } }

Output

48656C6C6F20686F772061726520796F7520686F7720646F20796F7520646F