Example usage for java.lang Integer toHexString

Introduction

In this page you can find the example usage for java.lang Integer toHexString.

Prototype

public static String toHexString(int i)

Source Link

Document

Returns a string representation of the integer argument as an unsigned integer in base 16.

Usage

From source file:Main.java

public static String getMD5Value(String value) {
    byte[] hash;/* ww w  .j  av a 2 s.c o m*/
    try {
        hash = MessageDigest.getInstance(MD5).digest(value.getBytes(UTF8));
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException("Huh, MD5 should be supported?", e);
    } catch (UnsupportedEncodingException e) {
        throw new RuntimeException("Huh, UTF-8 should be supported?", e);
    }
    StringBuilder hex = new StringBuilder(hash.length * 2);
    for (byte b : hash) {
        if ((b & 0xFF) < 0x10)
            hex.append("0");
        hex.append(Integer.toHexString(b & 0xFF));
    }
    return hex.toString();
}

From source file:Main.java

public static String MD5(String inStr) {
    MessageDigest md5 = null;//ww w .java2s .  c om
    try {
        md5 = MessageDigest.getInstance("MD5");
    } catch (Exception e) {
        System.out.println(e.toString());
        e.printStackTrace();
        return "";
    }
    char[] charArray = inStr.toCharArray();
    byte[] byteArray = new byte[charArray.length];

    for (int i = 0; i < charArray.length; i++)
        byteArray[i] = (byte) charArray[i];

    byte[] md5Bytes = md5.digest(byteArray);

    StringBuffer hexValue = new StringBuffer();

    for (int i = 0; i < md5Bytes.length; i++) {
        int val = ((int) md5Bytes[i]) & 0xff;
        if (val < 16)
            hexValue.append("0");
        hexValue.append(Integer.toHexString(val));
    }

    return hexValue.toString();
}

From source file:Main.java

public static String hexColorFromRessourceColor(Context context, int idColor) {
    return "#" + Integer.toHexString(context.getResources().getColor(idColor) & 0x00ffffff);
}

From source file:Main.java

public static String getMD5(String inStr) {
    MessageDigest md5;/*from w  ww.  j  a  v a2 s. c o  m*/
    try {
        md5 = MessageDigest.getInstance("MD5");
    } catch (Exception e) {
        e.printStackTrace();
        return "";
    }

    char[] charArray = inStr.toCharArray();
    byte[] byteArray = new byte[charArray.length];
    for (int i = 0; i < charArray.length; i++) {
        byteArray[i] = (byte) charArray[i];
    }
    byte[] md5Bytes = md5.digest(byteArray);

    StringBuilder hexValue = new StringBuilder();
    for (byte md5Byte : md5Bytes) {
        int val = ((int) md5Byte) & 0xff;
        if (val < 16) {
            hexValue.append("0");
        }
        hexValue.append(Integer.toHexString(val));
    }
    return hexValue.toString();
}

From source file:Main.java

/**
 * Hex format.//from   www. j a v  a2  s  .  c  o  m
 * 
 * @param i
 *          a int
 * @param j
 *          a int
 * @return a String
 */
private static String hexFormat(int i, int j) {
    final String s = Integer.toHexString(i);
    return padHex(s, j) + s;
}

From source file:Main.java

public static String computeMD5(byte[] input) {
    try {//from   w  w  w .  j  a  va 2 s  .  co  m
        MessageDigest md = MessageDigest.getInstance("MD5");
        md.update(input, 0, input.length);
        byte[] md5bytes = md.digest();

        StringBuffer hexString = new StringBuffer();
        for (int i = 0; i < md5bytes.length; i++) {
            String hex = Integer.toHexString(0xff & md5bytes[i]);
            if (hex.length() == 1)
                hexString.append('0');
            hexString.append(hex);
        }
        return hexString.toString();
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException(e);
    }
}

From source file:Main.java

public static String md5Summary(String str) {

    if (str == null) {
        return null;
    }//from w ww  .j  ava2 s  . c o  m

    MessageDigest messageDigest = null;

    try {
        messageDigest = MessageDigest.getInstance("MD5");
        messageDigest.reset();
        messageDigest.update(str.getBytes("utf-8"));
    } catch (NoSuchAlgorithmException e) {

        return str;
    } catch (UnsupportedEncodingException e) {
        return str;
    }

    byte[] byteArray = messageDigest.digest();

    StringBuffer md5StrBuff = new StringBuffer();

    for (int i = 0; i < byteArray.length; i++) {
        if (Integer.toHexString(0xFF & byteArray[i]).length() == 1)
            md5StrBuff.append("0").append(Integer.toHexString(0xFF & byteArray[i]));
        else
            md5StrBuff.append(Integer.toHexString(0xFF & byteArray[i]));
    }

    return md5StrBuff.toString();
}

From source file:Main.java

private static String bytesToHexString(byte[] bytes) {
    // http://stackoverflow.com/questions/332079
    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < bytes.length; i++) {
        String hex = Integer.toHexString(0xFF & bytes[i]);
        if (hex.length() == 1) {
            sb.append('0');
        }//  w  w  w  .  jav  a  2s  .com
        sb.append(hex);
    }
    return sb.toString();
}

From source file:Main.java

/**
 * Split uint8 to 2 bytes of high byte and low byte. e.g. 20 = 0x14 should
 * be split to [0x01,0x04] 0x01 is high byte and 0x04 is low byte
 * /*from   ww  w .  j  a  v  a 2s.  com*/
 * @param uint8
 *            the char(uint8)
 * @return the high and low bytes be split, byte[0] is high and byte[1] is
 *         low
 */
public static byte[] splitUint8To2bytes(char uint8) {
    if (uint8 < 0 || uint8 > 0xff) {
        throw new RuntimeException("Out of Boundary");
    }
    String hexString = Integer.toHexString(uint8);
    byte low;
    byte high;
    if (hexString.length() > 1) {
        high = (byte) Integer.parseInt(hexString.substring(0, 1), 16);
        low = (byte) Integer.parseInt(hexString.substring(1, 2), 16);
    } else {
        high = 0;
        low = (byte) Integer.parseInt(hexString.substring(0, 1), 16);
    }
    byte[] result = new byte[] { high, low };
    return result;
}

From source file:Main.java

private static String getDigestStr(byte[] origBytes) {
    String tempStr = null;//from  ww  w.jav  a2 s . c o m
    StringBuilder stb = new StringBuilder();
    for (int i = 0; i < origBytes.length; i++) {
        tempStr = Integer.toHexString(origBytes[i] & 0xff);
        if (tempStr.length() == 1) {
            stb.append("0");
        }
        stb.append(tempStr);

    }
    return stb.toString();
}