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:Main.java

/**
 * Adds an attribute with the list of integer values encoded as a string.
 * @param element        the element to which the attribute will be added
 * @param attributeName  the name of the attribute
 * @param intValues      the list of Integer values to set
 *//*from  ww  w  . ja  v  a 2s.  com*/
public static void setIntegerListAttribute(Element element, String attributeName, List<Integer> intValues) {
    StringBuilder sb = new StringBuilder();
    for (Integer intValue : intValues) {
        if (sb.length() == 0) {
            sb.append(" "); //$NON-NLS-1$
        }
        sb.append(intValue);
    }

    element.setAttribute(attributeName, sb.toString());
}

From source file:Main.java

public static <T> String join(List<T> array, String separator) {
    if (array == null || separator == null) {
        return "";
    }// www.j a  va 2  s  .  co  m

    StringBuilder result = new StringBuilder();
    for (T item : array) {
        if (result.length() > 0) {
            result.append(separator).append(String.valueOf(item));
        } else {
            result.append(String.valueOf(item));
        }
    }

    return result.toString();
}

From source file:Main.java

public static String formatValue(long value) throws NumberFormatException {
    if (value < 0) {
        throw new NumberFormatException("Negative value " + value);
    }//  w  ww  .j  a  va 2  s .c o m
    StringBuilder sb = new StringBuilder(Long.toString(value));
    while (sb.length() <= 8) {
        sb.insert(0, '0');
    }
    sb.insert(sb.length() - 8, '.');
    while (sb.length() > 1 && (sb.charAt(sb.length() - 1) == '0' || sb.charAt(sb.length() - 1) == '.')) {
        sb.setLength(sb.length() - 1);
    }
    return sb.toString();
}

From source file:Main.java

public static String encodeMultiIntegerField(int[] values) {
    StringBuilder encodedField = new StringBuilder();
    for (int value : values) {
        if (encodedField.length() > 0) {
            encodedField.append(';');
        }/* www.j a  v a2 s  . c  o m*/
        encodedField.append(value);
    }
    return encodedField.toString();
}

From source file:Main.java

public static String toMatchString(List<String> terms) {
    StringBuilder builder = new StringBuilder();
    for (String term : terms) {
        if (builder.length() != 0) {
            builder.append(' ');
        }/*from w  ww. j a va2 s .co  m*/
        if (isKeyword(term)) {
            builder.append(term.toUpperCase(Locale.ENGLISH));
        } else if (term.contains("*") || term.startsWith("-")) {
            builder.append(term);
        } else {
            builder.append('*').append(term).append('*');
        }
    }
    return builder.toString();
}

From source file:Main.java

public static String getCauses(Throwable e) {
    try {/*from   w w  w .  j a  va 2 s  . co  m*/
        StringBuilder sb = new StringBuilder();
        while (e != null) {
            if (sb.length() > 0) {
                sb.append(", ");
            }
            sb.append(e.getClass().getSimpleName());
            e = e.getCause();
        }

        return sb.toString();

    } catch (Throwable derp) {
        return "derp " + derp.getClass().getSimpleName();
    }
}

From source file:Main.java

/**
 * Converts a string to title casing.//from w ww  .  jav a2s .  c  o m
 * @param str
 *      The string to convert.
 * @return
 *      The converted string.
 */
public static String toTitleCase(String str) {
    if (str == null) {
        return null;
    }
    // skip if already contains mixed case
    if (!str.equals(str.toLowerCase()) && !str.equals(str.toUpperCase())) {
        return str;
    }

    boolean isSeparator = true;
    StringBuilder builder = new StringBuilder(str);
    final int len = builder.length();

    for (int i = 0; i < len; ++i) {
        char c = builder.charAt(i);
        if (isSeparator) {
            if (Character.isLetterOrDigit(c)) {
                // Convert to title case and switch out of whitespace mode.
                builder.setCharAt(i, Character.toTitleCase(c));
                isSeparator = false;
            }
        } else if (!Character.isLetterOrDigit(c)) {
            isSeparator = true;
        } else {
            builder.setCharAt(i, Character.toLowerCase(c));
        }
    }

    return builder.toString();
}

From source file:Main.java

public static String encodeMultiStringField(String[] values) {
    StringBuilder encodedField = new StringBuilder();
    for (String value : values) {
        if (encodedField.length() > 0) {
            encodedField.append(';');
        }//from w  ww.j  ava2 s .  c  om
        encodedField.append(value);
    }
    return encodedField.toString();
}

From source file:Main.java

public static String formatSize(long size) {
    String suffix = null;/*w  w  w. j a  v  a 2  s  .  c  om*/

    if (size >= 1024) {
        suffix = "KB";
        size /= 1024;
        if (size >= 1024) {
            suffix = "MB";
            size /= 1024;
        }
    }

    StringBuilder resultBuffer = new StringBuilder(Long.toString(size));

    int commaOffset = resultBuffer.length() - 3;
    while (commaOffset > 0) {
        resultBuffer.insert(commaOffset, ',');
        commaOffset -= 3;
    }

    if (suffix != null)
        resultBuffer.append(suffix);
    return resultBuffer.toString();
}

From source file:Main.java

/**
 * Converts a string to title casing./*from  w  w  w .j ava2  s .co m*/
 *
 * @param str The string to convert.
 * @return The converted string.
 */
public static String toTitleCase(String str) {
    if (str == null) {
        return null;
    }

    boolean isSeparator = true;
    StringBuilder builder = new StringBuilder(str);
    final int len = builder.length();

    for (int i = 0; i < len; ++i) {
        char c = builder.charAt(i);
        if (isSeparator) {
            if (Character.isLetterOrDigit(c)) {
                // Convert to title case and switch out of whitespace mode.
                builder.setCharAt(i, Character.toTitleCase(c));
                isSeparator = false;
            }
        } else if (!Character.isLetterOrDigit(c)) {
            isSeparator = true;
        } else {
            builder.setCharAt(i, Character.toLowerCase(c));
        }
    }

    return builder.toString();
}