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

public static StringBuilder getThreadSafeStringBuilder() {
    StringBuilder sb = threadSafeStrBuilder.get();
    if (sb == null) {
        sb = new StringBuilder();
        threadSafeStrBuilder.set(sb);/*  w  w w  .j  ava 2  s. co  m*/
    }
    sb.delete(0, sb.length());
    return sb;
}

From source file:com.norconex.collector.core.pipeline.importer.SaveDocumentStage.java

private static String[] splitLargeSegment(String segment) {
    if (segment.length() <= MAX_SEGMENT_LENGTH) {
        return new String[] { segment };
    }//from w  w  w.j  a v  a 2 s .c o  m

    List<String> segments = new ArrayList<>();
    StringBuilder b = new StringBuilder(segment);
    while (b.length() > MAX_SEGMENT_LENGTH) {
        segments.add(b.substring(0, MAX_SEGMENT_LENGTH));
        b.delete(0, MAX_SEGMENT_LENGTH);
    }
    segments.add(b.substring(0));
    return segments.toArray(ArrayUtils.EMPTY_STRING_ARRAY);
}

From source file:Main.java

/**
 * Get a hexadecimal representation of a byte array starting at <code>offset</code> index for <code>len</code>
 * bytes, with each octet separated by a space.
 *
 * @param array/*from  w  ww . j a  va 2  s . com*/
 * @param offset
 * @param len
 *
 * @return hex string, each octet delimited by a space
 */
public static String printHex(byte[] array, int offset, int len) {
    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < len; i++) {
        byte b = array[offset + i];
        if (sb.length() > 0)
            sb.append(' ');
        sb.append(digits[b >> 4 & 0x0F]);
        sb.append(digits[b & 0x0F]);
    }
    return sb.toString();
}

From source file:Main.java

public static String zeropadRight(String s, int len) {
    StringBuilder d = new StringBuilder(s);
    while (d.length() < len)
        d.append('0');
    return d.toString();
}

From source file:Main.java

public static String formatSize(long size) {
    String suffix = null;//from ww  w .  j ava2 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

public static <T> String concat(Collection<T> col, String separator) {

    StringBuilder result = new StringBuilder();

    for (T e : col) {
        String s = e.toString();// ww w .  j a  v  a 2s .  co m
        if (!s.isEmpty()) {
            if (result.length() > 0)
                result.append(separator);
            result.append(s);
        }
    }

    return result.toString();

}

From source file:Main.java

/** Concatenates any number of clauses using the specified operation. */
public static String concatenateClausesWithOperation(String operation, String... clauses) {
    // Nothing to concatenate.
    if (clauses.length == 1) {
        return clauses[0];
    }/*from   w w  w.  j  av a 2  s  .c  om*/

    StringBuilder builder = new StringBuilder();

    for (String clause : clauses) {
        if (!TextUtils.isEmpty(clause)) {
            if (builder.length() > 0) {
                builder.append(" ").append(operation).append(" ");
            }
            builder.append("(");
            builder.append(clause);
            builder.append(")");
        }
    }
    return builder.toString();
}

From source file:Main.java

public static String urlWithParameters(String url, Map<String, Object> params) {
    StringBuilder builder = new StringBuilder();

    if (params != null) {
        for (Map.Entry<String, Object> entry : params.entrySet()) {
            if (builder.length() == 0) {
                if (url.contains("?")) {
                    builder.append("&");
                } else {
                    builder.append("?");
                }/*w  w w  .  j a  v a  2s  .  c  o  m*/
            } else {
                builder.append("&");
            }
            builder.append(entry.getKey()).append("=").append(entry.getValue());
        }
    }

    return url + builder.toString();
}

From source file:Main.java

public static void print(int[] objs) {
    StringBuilder builder = new StringBuilder();
    for (int e : objs) {
        builder.append("," + e);
    }/*  w  ww.  j av a  2  s  . c  o  m*/
    System.out.println(builder.substring(1, builder.length()));
}

From source file:Main.java

public static String getMethodName(Method method, Class<?>[] parameterClasses, String rightCode) {
    if (method.getParameterTypes().length > parameterClasses.length) {
        Class<?>[] types = method.getParameterTypes();
        StringBuilder buf = new StringBuilder(rightCode);
        for (int i = parameterClasses.length; i < types.length; i++) {
            if (buf.length() > 0) {
                buf.append(",");
            }/* w  w  w .j  a v a 2  s . c o m*/
            Class<?> type = types[i];
            String def;
            if (type == boolean.class) {
                def = "false";
            } else if (type == char.class) {
                def = "\'\\0\'";
            } else if (type == byte.class || type == short.class || type == int.class || type == long.class
                    || type == float.class || type == double.class) {
                def = "0";
            } else {
                def = "null";
            }
            buf.append(def);
        }
    }
    return method.getName() + "(" + rightCode + ")";
}