Turns a byte array into a hex-string representation - Java java.lang

Java examples for java.lang:byte Array to int

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Description

Turns a byte array into a hex-string representation

Demo Code


//package com.java2s;

public class Main {
    public static void main(String[] argv) throws Exception {
        byte[] bytes = new byte[] { 34, 35, 36, 37, 37, 37, 67, 68, 69 };
        System.out.println(bytesToHex(bytes));
    }//www  . ja v a  2 s  .c o  m

    final protected static char[] hexArray = "0123456789ABCDEF"
            .toCharArray();

    /**
     * Turns a byte array into a hex-string representation
     * @param bytes
     * @return
     */
    public static String bytesToHex(byte[] bytes) {
        char[] hexChars = new char[bytes.length * 2];
        for (int j = 0; j < bytes.length; j++) {
            int v = bytes[j] & 0xFF;
            hexChars[j * 2] = hexArray[v >>> 4];
            hexChars[j * 2 + 1] = hexArray[v & 0x0F];
        }
        return new String(hexChars);
    }
}

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