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

/**
 * Ensures an arc's label is indeed printable (dot uses US-ASCII). 
 *//*from  ww  w .  j  a  va 2s  .c o  m*/
private static String printableLabel(int label) {
    if (label >= 0x20 && label <= 0x7d) {
        return Character.toString((char) label);
    } else {
        return "0x" + Integer.toHexString(label);
    }
}

From source file:Main.java

/**
 * Write a {@link Color} value into XML output.
 *
 * @param value/*  w  w  w  .  j a  v  a 2s. c  o m*/
 * value to write
 *
 * @return
 * XML string
 *
 * @throws IllegalArgumentException
 * if a validation error occured
 */
public static String printColor(Color value) {
    if (value == null) {
        throw new IllegalArgumentException("The provided color is invalid!");
    }

    String r = Integer.toHexString(value.getRed()).trim();
    if (r.length() == 1)
        r = "0" + r;
    String g = Integer.toHexString(value.getGreen()).trim();
    if (g.length() == 1)
        g = "0" + g;
    String b = Integer.toHexString(value.getBlue()).trim();
    if (b.length() == 1)
        b = "0" + b;
    return "#" + r + g + b;
}

From source file:Main.java

/**
 * Convert a color-int into a color hexadecimal string.
 * Format will be #AARRGGBB if includeAlpha is true, or #RRGGBB if is false.
 *
 * @param color        color int//from  ww w.  j a  va  2  s . co  m
 * @param includeAlpha if true hexadecimal will include alpha channel
 * @return color code for the color-int specified and based on the includeAlpha
 */
public static String colorToString(int color, boolean includeAlpha) {
    if (includeAlpha) {
        return "#" + Integer.toHexString(color);
    } else {
        return "#" + Integer.toHexString(color).substring(2);
    }
}

From source file:Main.java

/**
 * parse "24,-2,52,-102,-93,-60" to "18,fe,34,9a,a3,c4"
 * parse the bssid from hex to String/*w  ww.j  ava  2  s .co m*/
 * @param bssidBytes the hex bytes bssid, e.g. {24,-2,52,-102,-93,-60}
 * @return the String of bssid, e.g. 18fe349aa3c4
 */
public static String parseBssid(byte[] bssidBytes) {
    StringBuilder sb = new StringBuilder();
    int k;
    String hexK;
    String str;
    for (int i = 0; i < bssidBytes.length; i++) {
        k = 0xff & bssidBytes[i];
        hexK = Integer.toHexString(k);
        str = ((k < 16) ? ("0" + hexK) : (hexK));
        System.out.println(str);
        sb.append(str);
    }
    return sb.toString();
}

From source file:Main.java

public static String SHA1(String str) {
    try {//from   w  w  w. j  a  v  a 2  s .  co  m
        MessageDigest digest = java.security.MessageDigest.getInstance("SHA-1");
        digest.update(str.getBytes());
        byte messageDigest[] = digest.digest();
        // Create Hex String
        StringBuffer hexString = new StringBuffer();

        for (byte i : messageDigest) {
            String shaHex = Integer.toHexString(i & 0xFF);
            if (shaHex.length() < 2) {
                hexString.append(0);
            }
            hexString.append(shaHex);
        }
        return hexString.toString();

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

From source file:Main.java

/**
 * SHA256 implementation/*from   w w  w  .  j  av  a 2 s. c  o  m*/
 * @param toHash the cleartext string
 * @return a SHA256 hashed string
 */
public static String sha256(final String toHash) {
    try {
        MessageDigest digest = MessageDigest.getInstance("SHA-256");
        byte[] hash = digest.digest(toHash.getBytes());
        StringBuilder hexString = new StringBuilder();

        for (byte aHash : hash) {
            String hex = Integer.toHexString(0xff & aHash);
            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

/**
 * Converts byte data to a Hex-encoded string.
 *
 * @param data/*from w  w w .  j a  v a  2s  .  c o m*/
 *            data to hex encode.
 *
 * @return hex-encoded string.
 */
public static String toHex(byte[] data) {
    StringBuilder sb = new StringBuilder(data.length * 2);
    for (int i = 0; i < data.length; i++) {
        String hex = Integer.toHexString(data[i]);
        if (hex.length() == 1) {
            // Append leading zero.
            sb.append("0");
        } else if (hex.length() == 8) {
            // Remove ff prefix from negative numbers.
            hex = hex.substring(6);
        }
        sb.append(hex);
    }
    return sb.toString().toLowerCase(Locale.getDefault());
}

From source file:Main.java

public static final String bytesToHexString(byte[] bArray) {
    StringBuffer sb = new StringBuffer(bArray.length);
    String sTemp;// ww  w . j  ava 2  s  .co m
    for (int i = 0; i < bArray.length; i++) {
        sTemp = Integer.toHexString(0xFF & bArray[i]);
        if (sTemp.length() < 2)
            sb.append(0);
        sb.append(sTemp.toUpperCase());
    }
    return sb.toString();
}

From source file:Main.java

private static String hashBytes(MessageDigest hash, byte[] bytes) {
    hash.update(bytes);//from  w  w  w  .j  a  v  a2 s  .c om
    byte[] digest = hash.digest();
    StringBuilder builder = new StringBuilder();
    for (int b : digest) {
        builder.append(Integer.toHexString((b >> 4) & 0xf));
        builder.append(Integer.toHexString((b >> 0) & 0xf));
    }
    return builder.toString();
}

From source file:Main.java

public static String sha1(String strSrc) {
    MessageDigest md = null;//  www.j  ava2 s .c  o  m
    String strDes = "";

    byte[] bt = strSrc.getBytes();
    try {
        md = MessageDigest.getInstance("SHA-1");
        md.update(bt);
        byte[] encryptStr = md.digest();
        String tmp = null;
        for (int i = 0; i < encryptStr.length; i++) {
            tmp = (Integer.toHexString(encryptStr[i] & 0xFF));
            if (tmp.length() == 1) {
                strDes += "0";
            }
            strDes += tmp;
        }
    } catch (NoSuchAlgorithmException e) {
        System.out.println("Invalid algorithm.");
        return null;
    }
    return strDes;
}