Java Hex Calculate toHexString(StringBuffer buffer, byte[] bytes, int numBytes)

Description

to Hex String

License

Open Source License

Declaration

public static void toHexString(StringBuffer buffer, byte[] bytes, int numBytes) 

Method Source Code

//package com.java2s;
/*//from  ww w .j  a v  a2 s . co  m
 * Copyright 2006 by EkoLiving Pty Ltd.  All Rights Reserved.
 *
 * This software is the proprietary information of EkoLiving Pty Ltd.
 * Use is subject to license terms.
 */

public class Main {
    public static void toHexString(StringBuffer buffer, byte[] bytes, int numBytes) {
        buffer.append('[');
        if (bytes != null) {
            for (int i = 0; i < numBytes; i++) {
                String chars = Integer.toHexString(bytes[i] & 0xFF);
                if (chars.length() == 1) {
                    buffer.append('0');
                }
                buffer.append(chars);
                if (i < bytes.length - 1) {
                    buffer.append(' ');
                }
            }
        } else {
            buffer.append(" null ");
        }

        buffer.append(']');
    }

    public static void toHexString(StringBuffer buffer, char[] chars, int numChars) {
        buffer.append('[');
        if (chars != null) {
            for (int i = 0; i < numChars; i++) {
                String temp = Integer.toHexString(chars[i]); // & 0xFF);
                switch (temp.length()) {
                case 1:
                    buffer.append("000");
                    break;
                case 2:
                    buffer.append("00");
                    break;
                case 3:
                    buffer.append('0');
                    break;
                }
                buffer.append(temp);
                if (i < chars.length - 1) {
                    buffer.append(' ');
                }
            }
        } else {
            buffer.append(" null ");
        }

        buffer.append(']');
    }

    public static StringBuffer toHexString(byte[] bytes, int numBytes) {
        StringBuffer buffer = new StringBuffer();
        toHexString(buffer, bytes, numBytes);
        return buffer;
    }

    public static StringBuffer toHexString(char[] chars, int numChars) {
        StringBuffer buffer = new StringBuffer();
        toHexString(buffer, chars, numChars);
        return buffer;
    }

    public static StringBuffer toHexString(byte[] bytes) {
        return toHexString(bytes, bytes.length);
    }

    public static StringBuffer toHexString(char[] chars) {
        return toHexString(chars, chars.length);
    }

    public static StringBuffer toHexString(String string) {
        char[] chars = string.toCharArray();
        return toHexString(chars);
    }
}

Related

1. toHexString(String s)
2. toHexString(String s)
3. toHexString(String s)
4. toHexString(String str)
5. toHexString(String str)
6. toHexString0x(byte[] byteArray)
7. toHexString2(int i)
8. toHexString3(byte aByte)
9. toHexStringBE(char[] array)