Example usage for java.lang StringBuilder length

Introduction

In this page you can find the example usage for java.lang StringBuilder length.

Prototype

int length();

Source Link

Document

Returns the length of this character sequence.

Usage

From source file:StringUtil.java

/**
 * Limit the string to a certain number of characters, adding "..." if it was truncated
 * /*from   w  ww .j a va2 s.c  o m*/
 * @param value
 *        The string to limit.
 * @param length
 *        the length to limit to (as an int).
 * @return The limited string.
 */
public static String limit(String value, int length) {
    StringBuilder buf = new StringBuilder(value);
    if (buf.length() > length) {
        buf.setLength(length);
        buf.append("...");
    }

    return buf.toString();
}

From source file:Main.java

public static String StringArrayToString(List<String> array) {
    StringBuilder sb = new StringBuilder();
    for (String n : array) {
        if (sb.length() > 0)
            sb.append(',');
        sb.append("").append(n).append("");
    }// w  ww.j  a  v a  2 s  .  c  o m
    return sb.toString();
}

From source file:Main.java

/**
 * Creates a NMEA checksum for a sentence.
 * /*from w  w  w  .  ja  va2s  .c o  m*/
 * The checksum is calculated by XOR every char value, between '$' and
 * '*'(end), with the current sum.
 * 
 * @param sbString
 *            String to calculate the checksum.
 * @return The checksum.
 */
public static int getNMEAChecksum(final StringBuilder sbString) {
    int checksum = 0;

    for (int i = 0; i < sbString.length(); i++) {
        if (sbString.charAt(i) != '*' && sbString.charAt(i) != '$')
            checksum ^= sbString.charAt(i);
    }
    return checksum;
}

From source file:Main.java

private static SecretKeySpec generateAESKey(String password) {
    byte[] data = null;
    StringBuilder sb = new StringBuilder();
    sb.append(password);//from   w ww.  jav  a 2s.  com
    while (sb.length() < 16)
        sb.append("0");
    if (sb.length() > 16)
        sb.setLength(16);
    try {
        data = sb.toString().getBytes("UTF-8");
        return new SecretKeySpec(data, "AES");
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}

From source file:Main.java

public static String join(final Collection<?> arr, final String sep) {
    final StringBuilder s = new StringBuilder();
    for (final Object obj : arr) {
        if (s.length() > 0)
            s.append(sep);//from  w  ww . ja  v  a 2  s.  c  om
        s.append(obj.toString());
    }
    return s.toString();
}

From source file:Main.java

public static String removeBlanks(String content) {
    if (content == null) {
        return null;
    }//from ww  w.j  ava  2 s  .  co  m
    StringBuilder buff = new StringBuilder();
    buff.append(content);
    for (int i = buff.length() - 1; i >= 0; i--) {
        if (' ' == buff.charAt(i) || ('\n' == buff.charAt(i)) || ('\t' == buff.charAt(i))
                || ('\r' == buff.charAt(i))) {
            buff.deleteCharAt(i);
        }
    }
    return buff.toString();
}

From source file:Main.java

public static String toUserEnteredString(List<String> term) {
    final StringBuilder builder = new StringBuilder();
    for (String part : term) {
        if (builder.length() != 0) {
            builder.append(' ');
        }/*from  w w w.j a  va 2 s  .  com*/
        builder.append(part);
    }
    return builder.toString();
}

From source file:Main.java

public static String genReqSerialNum() {
    if (reqSerialNum.get() == 99999999) {
        reqSerialNum.set(0);/*from w  ww.  j  av a2 s .co  m*/
    }
    int newValue = reqSerialNum.incrementAndGet();

    StringBuilder result = new StringBuilder(Integer.toString(newValue));
    int len = result.length();
    for (int i = len; i <= 8; i++) {
        result.insert(0, "0");
    }
    return result.toString();
}

From source file:Main.java

public static String abbreviate(String text) {
    String[] words = text.split("\\s");

    StringBuilder builder = new StringBuilder();
    int i = 0;/*from   w w  w .  j  a va  2  s  .c om*/
    while (i < words.length && builder.length() < 2) {
        String word = words[i].trim();
        if (word.length() > 0)
            builder.append(Character.toUpperCase(word.charAt(0)));
        i++;
    }

    return builder.toString();
}

From source file:Main.java

/**
 * Trim trailing whitespace from the given String.
 * @param str the String to check/*from w  ww . j  a  v a  2  s.c  o  m*/
 * @return the trimmed String
 * @see java.lang.Character#isWhitespace
 */
public static String trimTrailingWhitespace(String str) {
    if (!hasLength(str)) {
        return str;
    }
    StringBuilder sb = new StringBuilder(str);
    while (sb.length() > 0 && Character.isWhitespace(sb.charAt(sb.length() - 1))) {
        sb.deleteCharAt(sb.length() - 1);
    }
    return sb.toString();
}