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 bytes2HexString(byte[] data) {
    if (data == null) {
        return null;
    }/*  w  w  w  .j  a  v a 2 s  .  c  o  m*/
    StringBuilder sb = new StringBuilder(2 * data.length);
    for (byte b : data) {
        int n = 0x00ff & b;
        if (n < 10) {
            sb.append("0");
        }
        sb.append(Integer.toHexString(n));
    }
    return sb.toString();
}

From source file:Main.java

public static String MD5(String md5) {
    try {//  w  ww.j a  v a  2  s  . c o  m
        MessageDigest md = MessageDigest.getInstance("MD5");
        byte[] 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 (NoSuchAlgorithmException e) {
    }
    return null;
}

From source file:Main.java

public static char reverseToChar(int num) {
    /*/*w w  w. j  a  v a 2s  . c o m*/
     * if (num == 10) return 'A'; else if (num == 11) return 'B'; else if
     * (num == 12) return 'C'; else if (num == 13) return 'D'; else if (num
     * == 14) return 'E'; else if (num == 15) return 'F'; else return
     * String.valueOf(num).charAt(0);
     */
    return Integer.toHexString(num).charAt(0);
}

From source file:Main.java

public static int[] getAntennaTestData(String rotation, String funCode) {
    List<Integer> dateItem = new ArrayList();
    dateItem.add(Integer.valueOf(funCode));
    int intStep = Integer.valueOf(rotation) * 10;
    String hexStep = Integer.toHexString(intStep);

    if (hexStep.length() < 4) {
        switch (hexStep.length()) {
        case 1:/*from ww w  . j av  a2 s .  c  o  m*/
            hexStep = "000" + hexStep;
            break;
        case 2:
            hexStep = "00" + hexStep;
            break;
        case 3:
            hexStep = "0" + hexStep;
            break;
        }
    }
    dateItem.add(Integer.valueOf(hexStep.substring(2, 4), 16));
    dateItem.add(Integer.valueOf(hexStep.substring(0, 2), 16));
    for (int i = 0; i < 6; i++) {
        dateItem.add(0);
    }

    int[] message = new int[dateItem.size()];
    for (int i = 0; i < dateItem.size(); i++) {
        message[i] = dateItem.get(i);
    }

    return message;

}

From source file:Main.java

/**
 * Convert byte array to hex string/*from  w ww .  j a  v a  2s  .com*/
 *
 * @param bytes
 * @return
 */
public static String bytesToHex(byte[] bytes) {
    StringBuilder sbuf = new StringBuilder();
    for (int idx = 0; idx < bytes.length; idx++) {
        int intVal = bytes[idx] & 0xff;
        if (intVal < 0x10)
            sbuf.append("0");
        sbuf.append(Integer.toHexString(intVal).toUpperCase(Locale.US));
    }
    return sbuf.toString();
}

From source file:Main.java

public static String sha256(String base) {
    try {/*from w  w  w  .  java2  s  .c om*/
        MessageDigest digest = MessageDigest.getInstance("SHA-256");
        byte[] hash = digest.digest(base.getBytes("UTF-8"));
        StringBuffer hexString = new StringBuffer();

        for (int i = 0; i < hash.length; i++) {
            String hex = Integer.toHexString(0xff & hash[i]);
            if (hex.length() == 1)
                hexString.append('0');
            hexString.append(hex);
        }

        return hexString.toString();
    } catch (Exception ex) {
        throw new RuntimeException(ex);
    }
}

From source file:Main.java

public static String md5(String input) {
    String res = "";

    try {//from w  w w  .  j a  v a 2  s  .  c  om
        MessageDigest algorithm = MessageDigest.getInstance("MD5");
        algorithm.reset();
        algorithm.update(input.getBytes());
        byte[] md5 = algorithm.digest();
        String tmp = "";
        for (int i = 0; i < md5.length; i++) {
            tmp = (Integer.toHexString(0xFF & md5[i]));
            if (tmp.length() == 1) {
                res += "0" + tmp;
            } else {
                res += tmp;
            }
        }
    } catch (NoSuchAlgorithmException ex) {
        ex.printStackTrace();
        throw new RuntimeException(ex);
    }

    return res;
}

From source file:Main.java

public static String encode(String text) {
    try {//from   ww w .  java 2s. c o  m
        MessageDigest digest = MessageDigest.getInstance("md5");
        byte[] result = digest.digest(text.getBytes());
        StringBuilder sb = new StringBuilder();
        for (byte b : result) {
            int number = b & 0xff;
            String hex = Integer.toHexString(number);
            if (hex.length() == 1) {
                sb.append("0" + hex);
            } else {
                sb.append(hex);
            }
        }
        return sb.toString();
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
        return "";
    }
}

From source file:Main.java

public static String getDeviceID(Activity a) {
    TelephonyManager tm = (TelephonyManager) a.getApplicationContext()
            .getSystemService(Context.TELEPHONY_SERVICE);
    String id = tm.getDeviceId();
    if (id == null)
        id = "DefaultTwitchUser";
    return Integer.toHexString(id.hashCode());
}

From source file:Main.java

private static String getSessionComponent() {
    return Integer.toHexString((int) ((Math.random() + 1) * 0x10000)).substring(1);
}