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

/**
 *  Like DataHelper.toHexString but ensures no loss of leading zero bytes
 *  @since 0.8.4/*from w w  w. j av  a2s.  c  om*/
 */
public static String toHex(byte[] b) {
    StringBuilder buf = new StringBuilder(40);
    for (int i = 0; i < b.length; i++) {
        int bi = b[i] & 0xff;
        if (bi < 16)
            buf.append('0');
        buf.append(Integer.toHexString(bi));
    }
    return buf.toString();
}

From source file:Main.java

private static int[] getSnrAndChannelData(String snr, String channel) {
    List<Integer> dateItem = new ArrayList();
    int intSrn = Integer.valueOf(snr) * 100;
    String hexSnr = Integer.toHexString(intSrn);

    if (hexSnr.length() < 4) {
        switch (hexSnr.length()) {
        case 1:/*from ww  w.  ja  va2 s .c o m*/
            hexSnr = "000" + hexSnr;
            break;
        case 2:
            hexSnr = "00" + hexSnr;
            break;
        case 3:
            hexSnr = "0" + hexSnr;
            break;
        }
    }
    dateItem.add(Integer.valueOf(hexSnr.substring(2, 4), 16));
    dateItem.add(Integer.valueOf(hexSnr.substring(0, 2), 16));
    for (int i = 0; i < 6; i++) {
        dateItem.add(0);
    }
    String hexChannel = Integer.toHexString(Integer.valueOf(channel));
    if (hexChannel.length() < 4) {
        switch (hexChannel.length()) {
        case 1:
            hexChannel = "000" + hexChannel;
            break;
        case 2:
            hexChannel = "00" + hexChannel;
            break;
        case 3:
            hexChannel = "0" + hexChannel;
            break;
        }
    }
    dateItem.add(Integer.valueOf(hexChannel.substring(2, 4), 16));
    dateItem.add(Integer.valueOf(hexChannel.substring(0, 2), 16));
    for (int i = 0; i < 7; i++) {
        dateItem.add(0);
    }
    int[] message = new int[dateItem.size()];
    for (int i = 0; i < dateItem.size(); i++) {
        //            Logs.e("dateItem" + i + "===" + dateItem.get(i));
        message[i] = dateItem.get(i);
    }

    return message;

}

From source file:Main.java

/**
 * Get the hashcode for a bitmap./* w w w.j av  a2  s  .c  o  m*/
 */
private static String hashBitmap(Bitmap bmp) {
    int[] allpixels = new int[bmp.getHeight() * bmp.getWidth()];
    bmp.getPixels(allpixels, 0, bmp.getWidth(), 0, 0, bmp.getWidth(), bmp.getHeight());
    return Integer.toHexString(Arrays.hashCode(allpixels));
}

From source file:Main.java

public static String toMD5(String md5) {
    try {/*  w  w w  . ja  v a2  s.  c om*/
        java.security.MessageDigest md = java.security.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 (java.security.NoSuchAlgorithmException e) {
    }
    return null;
}

From source file:Main.java

/**
 * Convert byte array to hex string//from   w w  w  .  j a  v a2 s  . co  m
 * @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());
    }
    return sbuf.toString();
}

From source file:Main.java

public static int[] getStepData(String step, String funCode) {
    List<Integer> dateItem = new ArrayList();
    dateItem.add(Integer.valueOf(funCode));
    int intStep = Integer.valueOf(step) * 100;
    String hexStep = Integer.toHexString(intStep);

    if (hexStep.length() < 4) {
        switch (hexStep.length()) {
        case 1:/*from   ww  w  . j a  v a2s.  c om*/
            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

static String stringToHex(String str) {
    char[] chars = str.toCharArray();
    StringBuffer strBuffer = new StringBuffer();
    for (int i = 0; i < chars.length; i++) {
        strBuffer.append(Integer.toHexString((int) chars[i]));
    }//ww w .j a  v  a2  s  .c o m
    return strBuffer.toString();
}

From source file:Main.java

public static String byteArrayToHex(byte[] src, int from, int to) {

    StringBuilder sb = new StringBuilder();

    for (int i = from; i < to; i++) {
        int v = src[i] & 0xFF;
        String hv = Integer.toHexString(v);
        if (hv.length() < 2) {
            sb.append(0);//from  w w  w .java 2  s. c o m
        }
        sb.append(hv);
    }
    return sb.toString();
}

From source file:Main.java

public static String getMd5String(String md5) {
    try {/*from  w  w w. ja  v a 2  s .  com*/
        java.security.MessageDigest md = java.security.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 (java.security.NoSuchAlgorithmException e) {
        e.printStackTrace();
    }
    return null;
}

From source file:Main.java

/**
 * Convert from int data into String hexadecimal (ex 255 => "0xFF")
 *
 * @param data data to convert into hexa
 * @return data converted into hexa/*from w ww.ja v a 2s  . c om*/
 */
public static String convertFromIntToHexa(byte data) {
    int dataTmp = data & 0xFF;
    /* Put character in uppercase */
    String value = Integer.toHexString(dataTmp).toUpperCase();
    /* Add 0 if length equal to 1 */
    if (value.length() == 1) {
        value = "0" + value;
    }
    return value;
}