Example usage for java.lang String getChars

Introduction

In this page you can find the example usage for java.lang String getChars.

Prototype

public void getChars(int srcBegin, int srcEnd, char dst[], int dstBegin)

Source Link

Document

Copies characters from this string into the destination character array.

Usage

From source file:Main.java

/**
 * Convert a String to a char array/*from w  ww  . j a va 2 s  . com*/
 *
 * @param str The string to convert
 * @return character array containing the characters in str. An empty array is returned if str is null.
 */
public static char[] strToChars(String str) {
    int len;
    char[] ret;

    if (str == null) {
        return EMPTY_CHAR_ARRAY;
    }
    len = str.length();
    ret = new char[len];
    str.getChars(0, len, ret, 0);
    return ret;
}

From source file:Main.java

public static int hashCode(String str) {
    int hash = 0;
    if (str != null) {
        int multiplier = 1;
        int offset = 0;
        int count = str.length();
        char[] value = new char[count];
        str.getChars(offset, count, value, 0);
        for (int i = offset + count - 1; i >= offset; i--) {
            hash += value[i] * multiplier;
            int shifted = multiplier << 5;
            multiplier = shifted - multiplier;
        }/*  www.  j  ava  2s  . c  om*/
    }
    return hash;
}

From source file:Main.java

/** Optimized form of: key + "=" + val */
static String mapEntryToString(Object key, Object val) {
    final String k, v;
    final int klen, vlen;
    final char[] chars = new char[(klen = (k = objectToString(key)).length())
            + (vlen = (v = objectToString(val)).length()) + 1];
    k.getChars(0, klen, chars, 0);
    chars[klen] = '=';
    v.getChars(0, vlen, chars, klen + 1);
    return new String(chars);
}

From source file:com.sap.prd.mobile.ios.mios.XCodeValidationCheckMojoTest.java

private static String firstCharToUpperCase(String str) {
    char[] c = new char[str.length()];
    str.getChars(0, str.length(), c, 0);
    c[0] = Character.toUpperCase(c[0]);
    return new String(c);
}

From source file:Main.java

/**
 * Translates special characters to xml equivalents
 * like <b>&gt;</b> and <b>&amp;</b>. Please note that non valid xml chars
 * are not changed, hence you might want to use
 * replaceNonValidXmlCharacters() or stripNonValidXmlCharacters() too.
 *//*  w  ww  .ja v a2  s. c  o  m*/
public static String encodeChars(String string) {
    if (string == null) {
        return null;
    }
    int length = string.length();
    char[] characters = new char[length];
    string.getChars(0, length, characters, 0);
    return encodeChars(characters, 0, length);
}

From source file:dev.dposadsky.java.swingteacherdesktop.utils.StringUtils.java

public static String removeSpace(String s) {
    if (s == null)
        return null;
    char[] buf = new char[1024];
    int length = s.length();
    char[] oldChars = (length < 1024) ? buf : new char[length];
    s.getChars(0, length, oldChars, 0);
    int newLen = 0;
    for (int j = 0; j < length; j++) {
        char ch = oldChars[j];
        if (ch > ' ') {
            oldChars[newLen] = ch;//from  w w w .j a v a2s  . c  o  m
            newLen++;
        }
    }
    if (newLen != length)
        s = new String(oldChars, 0, newLen);

    return s;

}

From source file:Main.java

/**
 * Converts the given string to a char-array of exactly the given length.
 * If the given string is short than the wanted length, then the array is
 * padded with trailing padding chars. If the string is longer, the last
 * character are cut off that the string has the wanted size.
 *
 * @param string The string to convert./*from   w  ww  .j  ava2  s  . c o m*/
 * @param exactArrayLength The length of the retirned char-array.
 * @param paddingChar The character to use for padding, if necessary.
 * @return The string as char array, padded or cut off, if necessary.
 *         The array will have length exactArrayLength. null, if the
 *         given string is null.
 * @preconditions (exactArrayLength >= 0)
 * @postconditions (result == null)
 *                 or (result <> null)
 *                    and (result.length == exactArrayLength)
 */
public static char[] toPaddedCharArray(String string, int exactArrayLength, char paddingChar) {
    char[] charArray = null;

    if (string != null) {
        int stringLength = string.length();
        charArray = new char[exactArrayLength];
        string.getChars(0, Math.min(stringLength, exactArrayLength), charArray, 0);
        for (int i = stringLength; i < charArray.length; i++) { // fill the rest of the array with padding char
            charArray[i] = paddingChar;
        }
    }

    return charArray;
}

From source file:Main.java

@VisibleForTesting
public static void copyToCharArrayBuffer(String text, CharArrayBuffer buffer) {
    if (text != null) {
        char[] data = buffer.data;
        if (data == null || data.length < text.length()) {
            buffer.data = text.toCharArray();
        } else {/* ww  w  . j  ava 2  s .co  m*/
            text.getChars(0, text.length(), data, 0);
        }
        buffer.sizeCopied = text.length();
    } else {
        buffer.sizeCopied = 0;
    }
}

From source file:Main.java

public static String stripCharFromString(String fullString, char stripChar) {
    String retval = null;//from   ww  w. j a  v  a  2s .c om
    if (null != fullString) {
        int len = fullString.length();
        // first convert string into a char array
        char[] chars = new char[len];

        try {
            fullString.getChars(0, len, chars, 0);
        } catch (Exception e) {

        }

        int i;
        int j = 0;
        for (i = 0; i < chars.length; i++) {
            if (stripChar != chars[i]) {
                chars[j] = chars[i];
                j++;
            }
        }
        retval = new String(chars, 0, j);
    }
    return retval;
}

From source file:ypcnv.helpers.VCardSamsungHelper.java

/**
 * Some fields are encoded unproperly. Workaround - transliterate.
 * //  w  ww  .  j  a  v  a  2s.c  om
 * @param input
 *            - string to be processed.
 * @return Transliterated string.
 */
public static String transliterateCyr2Lat(String input) {
    char[] buff = { ' ' };
    StringBuilder outputBuilder = new StringBuilder();

    for (Integer idx = 0; idx < input.length(); idx++) {
        input.getChars(idx, idx + 1, buff, 0);
        if (VCardSamsungHelperMetaData.TRANSLIT_TABLE.get(buff[0]) == null) {
            outputBuilder.append(buff[0]);
        } else {
            outputBuilder.append(VCardSamsungHelperMetaData.TRANSLIT_TABLE.get(buff[0]));
        }
    }
    return outputBuilder.toString();
}