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 MD5(String source) {
    String resultHash = null;//from w  w w  .  j ava 2s.  c  o  m
    try {
        MessageDigest md5 = MessageDigest.getInstance("MD5");
        md5.reset();
        md5.update(source.getBytes("UTF-8"));
        byte[] result = md5.digest();
        StringBuffer buf = new StringBuffer(result.length * 2);
        for (int i = 0; i < result.length; i++) {
            int intVal = result[i] & 0xff;
            if (intVal < 0x10) {
                buf.append("0");
            }
            buf.append(Integer.toHexString(intVal));
        }
        resultHash = buf.toString();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return resultHash.toString();
}

From source file:Main.java

/**
 * Returns a 32 chararacter hexadecimal representation of an MD5 hash of the
 * given String./*from   w w  w  . j  a  va 2 s .  com*/
 * 
 * @param s the String to hash
 * @return the md5 hash
 */
public final static String md5(final String s) {
    try {
        final byte[] mBytes = mDigest.digest(s.getBytes("UTF-8"));
        final StringBuilder mBuilder = new StringBuilder(32);
        for (final byte aByte : mBytes) {
            final String mHex = Integer.toHexString(aByte & 0xFF);
            if (mHex.length() == 1) {
                mBuilder.append('0');
            }
            mBuilder.append(mHex);
        }
        return mBuilder.toString();
    } catch (final UnsupportedEncodingException ignored) {
    }
    return null;
}

From source file:Main.java

/**
 * for the reason, we use some bit to differ whether it is softap or sta. so, we may get the polluted bssid.
 * /*from   w  w  w .j  a  va2s. c  om*/
 * softap bssid: 1a:fe:34:77:c0:00 sta bssid: 18:fe:34:77:c0:00
 * 
 * @param BSSID
 * @return the real BSSID(SoftAp's BSSID)
 */
public static String restoreSoftApBSSID(String BSSID) {
    String pollutedBitStr = BSSID.substring(1, 2);
    Integer pollutedBitInt = 0;
    // get pollutedBitInt according to 0x..
    pollutedBitInt = Integer.parseInt(pollutedBitStr, 16);
    Integer cleanBitInt = pollutedBitInt | 0x02;
    String cleanBitStr = Integer.toHexString(cleanBitInt);
    return BSSID.substring(0, 1) + cleanBitStr + BSSID.substring(2);
}

From source file:Main.java

public static void appendComponent(StringBuffer buffer, int component) {
    String hex = Integer.toHexString(component);
    if (hex.length() == 1) {
        buffer.append('0');
    }/*  ww w  .ja  v  a 2  s . c  om*/
    buffer.append(hex);
}

From source file:Main.java

public static final String hash(final String s, final String algorithm) {
    try {//from w  w w .  j a va  2 s  . c o  m
        // Create MD5 or SHA-256 Hash
        MessageDigest digest = MessageDigest.getInstance(algorithm);
        digest.update(s.getBytes());
        byte messageDigest[] = digest.digest();

        // Create Hex String
        StringBuilder hexString = new StringBuilder();
        for (byte aMessageDigest : messageDigest) {
            String h = Integer.toHexString(0xFF & aMessageDigest);
            while (h.length() < 2)
                h = "0" + h;
            hexString.append(h);
        }
        return hexString.toString();

    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    }
    return "";
}

From source file:Main.java

public static String md5(String str) {
    MessageDigest algorithm = null;
    try {/*w ww . ja  v  a  2s .c  om*/
        algorithm = MessageDigest.getInstance("MD5");
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    }
    if (algorithm != null) {
        algorithm.reset();
        algorithm.update(str.getBytes());
        byte[] bytes = algorithm.digest();
        StringBuilder hexString = new StringBuilder();
        for (byte b : bytes) {
            hexString.append(Integer.toHexString(0xFF & b));
        }
        return hexString.toString();
    }
    return "";

}

From source file:Main.java

public static String hashMD5Generate(String s) {
    try {//from www .  j  av  a  2 s .  com
        // Create MD5 Hash
        MessageDigest digest = java.security.MessageDigest.getInstance("MD5");
        digest.update(s.getBytes());
        byte messageDigest[] = digest.digest();

        // Create Hex String
        StringBuffer hexString = new StringBuffer();
        for (int i = 0; i < messageDigest.length; i++) {
            String h = Integer.toHexString(0xFF & messageDigest[i]);
            while (h.length() < 2)
                h = "0" + h;
            hexString.append(h);
        }
        Log.d(DEBUG, hexString.toString());
        return hexString.toString();

    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    }
    return "";
}

From source file:Main.java

static public String toHexString(byte[] ba) {
    StringBuffer sbuf = new StringBuffer();
    for (byte b : ba) {
        String s = Integer.toHexString((int) (b & 0xff));
        if (s.length() == 1) {
            sbuf.append('0');
        }/*w w  w  .  j a  va 2s  .c  o m*/
        sbuf.append(s);
    }
    return sbuf.toString();
}

From source file:Main.java

public static String MD5(String md5) {
    try {//  w  w w . j  av  a2s  .  c om
        java.security.MessageDigest md = java.security.MessageDigest.getInstance("MD5");
        byte[] array;
        try {
            array = md.digest(md5.getBytes("UTF-8"));
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
            array = md.digest(md5.getBytes());
        }
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < array.length; ++i) {
            sb.append(Integer.toHexString((array[i] & 0xFF) | 0x100).substring(1, 3));
        }
        return sb.toString();
    } catch (java.security.NoSuchAlgorithmException e) {
    }
    return null;
}

From source file:Main.java

public static String convertStringToMd5(String valor) {

    MessageDigest mDigest;//from w ww . jav  a  2 s  .c o m
    StringBuffer sb;

    if (valor == "") {
        return null;
    }
    try {
        mDigest = MessageDigest.getInstance("MD5");
        byte[] valorMD5 = mDigest.digest(valor.getBytes("UTF-8"));
        sb = new StringBuffer();

        for (byte b : valorMD5) {
            sb.append(Integer.toHexString((b & 0xFF) | 0x100).substring(1, 3));
        }
        return sb.toString();
    } catch (NoSuchAlgorithmException | UnsupportedEncodingException ex) {
        Logger.getLogger(MessageDigest.class.getName()).log(Level.SEVERE, null, ex);
        Logger.getLogger(StringBuffer.class.getName()).log(Level.SEVERE, null, ex);
        return null;
    }
}