Example usage for java.lang Integer toHexString

List of usage examples for java.lang Integer toHexString

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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

/**
 * <p>Converts the string to the Unicode format '\u0020'.</p>
 * //from   w ww.  j  a v  a  2  s .co  m
 * <p>This format is the Java source code format.</p>
 *
 * <pre>
 *   CharUtils.unicodeEscaped(' ') = "\u0020"
 *   CharUtils.unicodeEscaped('A') = "\u0041"
 * </pre>
 * 
 * @param ch  the character to convert
 * @return the escaped Unicode string
 */
public static String unicodeEscaped(final char ch) {
    if (ch < 0x10) {
        return "\\u000" + Integer.toHexString(ch);
    } else if (ch < 0x100) {
        return "\\u00" + Integer.toHexString(ch);
    } else if (ch < 0x1000) {
        return "\\u0" + Integer.toHexString(ch);
    }
    return "\\u" + Integer.toHexString(ch);
}

From source file:Main.java

public static int firstDiff(byte[] a, int aOffset, byte[] b, int bOffset, int length) {
    if (a == null || b == null) {
        throw new IllegalArgumentException("Cannot compare null arrays.");
    }/*from w w  w.j a  va2s .  c  om*/
    if (aOffset + length > a.length || bOffset + length > b.length) {
        throw new ArrayIndexOutOfBoundsException("Range to compare not contained in array.");
    }
    if (a == b && aOffset == bOffset) {
        return -1;
    }
    for (int i = 0; i < length; i++) {
        if (a[aOffset + i] != b[bOffset + i]) {
            System.out.println(i + ": " + Integer.toHexString(0xFF & a[aOffset + i]) + " "
                    + Integer.toHexString(0xFF & b[bOffset + i]));
            return i;
        }
    }
    return -1;
}

From source file:com.beginner.core.utils.MD5.java

public static String md5(String str) {
    try {/* ww  w  .j  av a  2 s. co m*/
        MessageDigest md = MessageDigest.getInstance("MD5");
        md.update(str.getBytes());
        byte b[] = md.digest();

        int i;

        StringBuffer buf = new StringBuffer("");
        for (int offset = 0; offset < b.length; offset++) {
            i = b[offset];
            if (i < 0)
                i += 256;
            if (i < 16)
                buf.append("0");
            buf.append(Integer.toHexString(i));
        }
        str = buf.toString();
    } catch (Exception e) {
        e.printStackTrace();

    }
    return str;
}

From source file:Main.java

public static float getAttributeDimension(final Context context, final Resources.Theme theme, final int resId) {
    final TypedValue typedValue = new TypedValue(); // create a new typed value to received the resolved attribute
    // value//from w w  w .  j ava  2  s  .  c o  m
    final DisplayMetrics displayMetrics = context.getResources().getDisplayMetrics();
    if (!theme.resolveAttribute(resId, typedValue, true)) // if we can't resolve the value
    {
        throw new Resources.NotFoundException("Resource ID #0x" + Integer.toHexString(resId));
    }
    if (typedValue.type != TypedValue.TYPE_DIMENSION) // if the value isn't of the correct type
    {
        throw new Resources.NotFoundException("Resource ID #0x" + Integer.toHexString(resId) + " type #0x"
                + Integer.toHexString(typedValue.type) + " is not valid");
    }
    return typedValue.getDimension(displayMetrics); // return the value of the attribute in terms of the display
}

From source file:com.microsoft.tfs.client.common.ui.framework.helper.ColorUtils.java

/**
 * Returns a hexadecimal string ("html color") describing the given color.
 *
 * @param color/*from w w w  .  j  a v  a2s  .co m*/
 *        The color to describe in hexadecimal notation (not null)
 * @return A hexadecimal string (including leading "#") that describes the
 *         color
 */
public static String getColorString(final Color color) {
    Check.notNull(color, "color"); //$NON-NLS-1$

    final String red = Integer.toHexString(color.getRed());
    final String green = Integer.toHexString(color.getGreen());
    final String blue = Integer.toHexString(color.getBlue());

    final StringBuffer sb = new StringBuffer("#"); //$NON-NLS-1$

    if (red.length() == 1) {
        sb.append("0"); //$NON-NLS-1$
    }
    sb.append(red);

    if (green.length() == 1) {
        sb.append("0"); //$NON-NLS-1$
    }
    sb.append(green);

    if (blue.length() == 1) {
        sb.append("0"); //$NON-NLS-1$
    }
    sb.append(blue);

    return sb.toString();
}

From source file:Main.java

/**
 * Convert capitalize mode flags into human readable text.
 *
 * @param capsFlags The modes flags to be converted. It may be any combination of
 * {@link TextUtils#CAP_MODE_CHARACTERS}, {@link TextUtils#CAP_MODE_WORDS}, and
 * {@link TextUtils#CAP_MODE_SENTENCES}.
 * @return the text that describe the <code>capsMode</code>.
 *//*from  www  .j av  a  2 s . co  m*/
public static String flagsToString(final int capsFlags) {
    final int capsFlagsMask = TextUtils.CAP_MODE_CHARACTERS | TextUtils.CAP_MODE_WORDS
            | TextUtils.CAP_MODE_SENTENCES;
    if ((capsFlags & ~capsFlagsMask) != 0) {
        return "unknown<0x" + Integer.toHexString(capsFlags) + ">";
    }
    final ArrayList<String> builder = new ArrayList<>();
    if ((capsFlags & android.text.TextUtils.CAP_MODE_CHARACTERS) != 0) {
        builder.add("characters");
    }
    if ((capsFlags & android.text.TextUtils.CAP_MODE_WORDS) != 0) {
        builder.add("words");
    }
    if ((capsFlags & android.text.TextUtils.CAP_MODE_SENTENCES) != 0) {
        builder.add("sentences");
    }
    return builder.isEmpty() ? "none" : TextUtils.join("|", builder);
}

From source file:Main.java

public static String md5(String string) {
    byte[] hash = null;
    try {// w ww.  jav a  2 s. co m
        hash = MessageDigest.getInstance("MD5").digest( //No i18n
                string.getBytes("UTF-8"));//No i18n
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    }

    StringBuilder hex = new StringBuilder(hash.length * 2);
    for (byte b : hash) {
        if ((b & 0xFF) < 0x10) {
            hex.append("0");//No i18n
        }
        hex.append(Integer.toHexString(b & 0xFF));
    }
    return hex.toString();
}

From source file:Main.java

/**
 * Escapes the given text such that it can be safely embedded in a string literal
 * in Java source code./*from   www .  jav a  2  s .  com*/
 * 
 * @param text the text to escape
 * 
 * @return the escaped text
 */
public static String escapeToJavaString(String text) {
    if (text == null) {
        return null;
    }
    String result = text.replaceAll("\\\\", "\\\\\\\\").replaceAll("\"", "\\\\\"").replace("\b", "\\b")
            .replace("\f", "\\f").replace("\n", "\\n").replace("\r", "\\r").replace("\t", "\\t");
    StringBuilder complete = new StringBuilder();
    for (int i = 0; i < result.length(); i++) {
        int codePointI = result.codePointAt(i);
        if (codePointI >= 32 && codePointI <= 127) {
            complete.append(Character.toChars(codePointI));
        } else {
            // use Unicode representation
            complete.append("\\u");
            String hex = Integer.toHexString(codePointI);
            complete.append(getRepeatingString(4 - hex.length(), '0'));
            complete.append(hex);
        }
    }
    return complete.toString();
}

From source file:com.github.jinahya.codec.HexEncoderTest.java

@Test(enabled = true)
public static void testEncodeSingle() {

    final byte[] output = new byte[2];
    for (int i = 0; i < 256; i++) {
        HexEncoder.encodeSingle(i, output, 0);
        final String hex = (i < 0x10 ? "0" : "") + Integer.toHexString(i).toUpperCase();
        Assert.assertEquals(new String(output, StandardCharsets.US_ASCII), hex);
    }//from   ww  w. jav  a 2 s  . c  o m
}

From source file:com.cherong.mock.common.base.util.EncryptionUtil.java

public static String md5L32(String unencryptedText) {
    if (StringUtils.isEmpty(unencryptedText)) {
        LOGGER.info("unencryptedText is null.");
        return unencryptedText;
    }/*from  w w w . j a va2s  .c o m*/

    String ciphertext = "";
    try {
        MessageDigest md5 = MessageDigest.getInstance("MD5");
        byte[] bytes = md5.digest(unencryptedText.getBytes("UTF-8"));
        StringBuffer buffer = new StringBuffer();
        for (byte b : bytes) {
            int bt = b & 0xff;
            if (bt < 16) {
                buffer.append(0);
            }
            buffer.append(Integer.toHexString(bt));
        }
        ciphertext = buffer.toString();
        LOGGER.info("encrypt string {} to {};", unencryptedText, ciphertext);
    } catch (Exception e) {
        LOGGER.error(e.getMessage());
    }
    return ciphertext;
}