Example usage for java.lang StringBuilder charAt

Introduction

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

Prototype

char charAt(int index);

Source Link

Document

Returns the char value at the specified index.

Usage

From source file:com.splicemachine.db.impl.ast.PlanPrinter.java

private static String printResults(int nTimes, List<Map<String, Object>> results) {
    String indent = Strings.repeat(spaces, nTimes);
    StringBuilder buf = new StringBuilder("\n");
    for (Map<String, Object> row : results) {
        buf.append(indent).append('{');
        for (Map.Entry<String, Object> entry : row.entrySet()) {
            buf.append(entry).append(", ");
        }/*from  w  ww .  ja va2 s . c  om*/
        if (buf.length() > 2 && buf.charAt(buf.length() - 2) == ',') {
            buf.setLength(buf.length() - 2);
            buf.append("}\n");
        }
    }
    if (buf.length() > 0) {
        // remove last '\n'
        buf.setLength(buf.length() - 1);
    }
    return buf.toString();
}

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From source file:com.android.ide.eclipse.adt.internal.refactorings.core.RefactoringTestBase.java

public static String describe(Change change) throws Exception {
    StringBuilder sb = new StringBuilder(1000);
    describe(sb, change, 0);//from w  w w  .  ja va  2s.  c o m

    // Trim trailing space
    for (int i = sb.length() - 1; i >= 0; i--) {
        if (!Character.isWhitespace(sb.charAt(i))) {
            sb.setLength(i + 1);
            break;
        }
    }

    return sb.toString();
}

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From source file:Main.java

/**
 * Used for flattening a collection of objects into a string
 * @param   array   Array of elements to flatten
 * @param   fmt Format string to use for array flattening
 * @param   separator   Separator to use for string concat
 * @return   Representative string made up of array elements */
private static String flattenCollection(String elemName, Collection<?> array, String fmt, char separator) {
    StringBuilder builder = new StringBuilder();

    //append all elements in the array into a string
    for (Object element : array) {
        String elemValue = null;//from  ww  w  .j ava 2s . c om

        //replace null values with empty string to maintain index order
        if (null == element) {
            elemValue = "";
            builder.append(String.format(fmt, elemName, elemValue, separator));
        } else {
            elemValue = tryUrlEncode(element.toString());
            builder.append(String.format(fmt, elemName, elemValue, separator));
        }
    }

    //remove the last separator, if appended
    if ((builder.length() > 1) && (builder.charAt(builder.length() - 1) == separator))
        builder.deleteCharAt(builder.length() - 1);

    return builder.toString();
}

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From source file:com.abstratt.mdd.internal.frontend.textuml.TextUMLFormatter.java

private static boolean isAtWhitespace(StringBuilder output) {
    return output.length() > 0 && Character.isWhitespace(output.charAt(output.length() - 1));
}

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From source file:org.fastj.fit.tool.JSONHelper.java

public static Object jsonValue(String path, Map<String, Object> jo) throws DataInvalidException {
    //find(), data(), loop(), unique(), asc(), desc()
    String regex = "^[\\S\\s]*\\[((find|data|loop|unique|asc|desc)\\(\\))\\][\\S\\s]*$";
    String regex1 = "\\[((find|data|loop|unique|asc|desc)\\(\\))\\]";

    if (path.matches(regex)) {
        Matcher m = Pattern.compile(regex1).matcher(path);
        String op = null;//from   w w  w. j  a  v a 2 s.c  o  m
        if (m.find()) {
            op = m.group(2);
        }

        if (m.find())
            throw new DataInvalidException("JSON path invalid: more op.");
        String sizePath = path.replaceAll(regex1, "[size()]");
        Object leno = jsonValueInner(sizePath, jo);
        if ("nil".equals(leno) || leno == null) {
            if ("loop".equals(op) || "find".equals(op))
                return new ArrayList<>();
            return "nil";
        }

        int lsize = (Integer) leno;

        List<Object> vl = new ArrayList<>();
        for (int i = 0; i < lsize; i++) {
            String npath = path.replaceAll(regex1, "[" + i + "]");
            Object o = jsonValueInner(npath, jo);
            if (!"nil".equals(o) && !"null".equals(o) && null != o) {
                vl.add(o);
            }
        }

        switch (op) {
        case "loop":
        case "find":
            return vl;
        case "data":
            StringBuilder buff = new StringBuilder("@data:");
            for (Object o : vl) {
                buff.append(String.valueOf(o)).append(",");
            }
            if (buff.charAt(buff.length() - 1) == ',')
                buff.deleteCharAt(buff.length() - 1);
            return buff.toString();
        case "unique":
            List<Object> chkl = new ArrayList<Object>();
            for (Object o : vl) {
                if (chkl.contains(o))
                    return "false";
                chkl.add(o);
            }
            return "true";
        case "asc":
            List<String> svl3 = new ArrayList<>();
            for (int i = 0; i < vl.size(); i++) {
                svl3.add(String.valueOf(vl.get(i)));
            }
            List<String> svl4 = new ArrayList<>();
            svl4.addAll(svl3);
            Collections.sort(svl4);

            for (int i = 0; i < svl3.size(); i++) {
                if (svl3.get(i).equals(svl4.get(i))) {
                    continue;
                } else {
                    return "false";
                }
            }

            return "true";
        case "desc":
            List<String> svl = new ArrayList<>();
            for (int i = 0; i < vl.size(); i++) {
                svl.add(String.valueOf(vl.get(i)));
            }
            List<String> svl2 = new ArrayList<>();
            svl2.addAll(svl);
            Collections.sort(svl2);

            int len = svl.size();
            for (int i = 0; i < svl.size(); i++) {
                if (svl.get(i).equals(svl2.get(len - i - 1))) {
                    continue;
                } else {
                    return "false";
                }
            }

            return "true";
        default:
            return "nil";
        }
    } else {
        return jsonValueInner(path, jo);
    }
}

---

From source file:Main.java

public static String toZenkakuCase(String str) {
    int f = str.length();
    StringBuilder buffer = new StringBuilder(str);

    for (int i = 0; i < f; i++) {
        char c = str.charAt(i);

        if (H2Z.containsKey(c)) {
            buffer.setCharAt(i, H2Z.get(c));
        } else if (c == 0x0020) {
            buffer.setCharAt(i, '\u3000');
        } else if (c <= 0x007E && 0x0021 <= c) {
            buffer.setCharAt(i, (char) (c + 0xFEE0));
        }/*from  w  ww  .  ja  v a  2 s .  c  o m*/

        if ((0x304B <= c && c <= 0x3062 && (c % 2 == 1)) || (0x30AB <= c && c <= 0x30C2 && (c % 2 == 1))
                || (0x3064 <= c && c <= 0x3069 && (c % 2 == 0))
                || (0x30C4 <= c && c <= 0x30C9 && (c % 2 == 0))) {
            char d = buffer.charAt(i + 1);
            buffer.setCharAt(i, (char) (c + ((d == '\u309B') ? 1 : 0)));
            if (c != buffer.charAt(i)) {
                buffer = buffer.deleteCharAt(i + 1);
                f--;
            }
            continue;
        }

        if ((0x306F <= c && c <= 0x307D && (c % 3 == 0)) || (0x30CF <= c && c <= 0x30DD && (c % 3 == 0))) {
            char d = buffer.charAt(i + 1);
            buffer.setCharAt(i, (char) (c + ((d == '\u309B') ? 1 : ((d == '\u309C') ? 2 : 0))));
            if (c != buffer.charAt(i)) {
                buffer = buffer.deleteCharAt(i + 1);
                f--;
            }
            continue;
        }

    }

    return buffer.toString();
}

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From source file:org.apache.ofbiz.base.util.StringUtil.java

/** Make sure the string starts with a forward slash but does not end with one; converts back-slashes to forward-slashes; if in String is null or empty, returns zero length string. */
public static String cleanUpPathPrefix(String prefix) {
    if (UtilValidate.isEmpty(prefix))
        return "";

    StringBuilder cppBuff = new StringBuilder(prefix.replace('\\', '/'));

    if (cppBuff.charAt(0) != '/') {
        cppBuff.insert(0, '/');
    }/*from w  w  w .jav a2s. com*/
    if (cppBuff.charAt(cppBuff.length() - 1) == '/') {
        cppBuff.deleteCharAt(cppBuff.length() - 1);
    }
    return cppBuff.toString();
}

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From source file:com.facebook.litho.ComponentsStethoManagerImpl.java

private static String toCSSString(String str) {
    final StringBuilder builder = new StringBuilder(str.length());
    builder.append(str);//  w ww .  j  a v a2s.c  om
    for (int i = 0, length = builder.length(); i < length; ++i) {
        final char oldChar = builder.charAt(i);
        final char lowerChar = Character.toLowerCase(oldChar);
        final char newChar = lowerChar == '_' ? '-' : lowerChar;
        builder.setCharAt(i, newChar);
    }
    return builder.toString();
}

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From source file:com.facebook.litho.ComponentsStethoManagerImpl.java

private static String toEnumString(String str) {
    final StringBuilder builder = new StringBuilder(str.length());
    builder.append(str);/* w w  w  .  ja  v  a  2 s  .co  m*/
    for (int i = 0, length = builder.length(); i < length; ++i) {
        final char oldChar = builder.charAt(i);
        final char upperChar = Character.toUpperCase(oldChar);
        final char newChar = upperChar == '-' ? '_' : upperChar;
        builder.setCharAt(i, newChar);
    }
    return builder.toString();
}

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From source file:org.cleverbus.common.Strings.java

/**
 * Removes last character from a builder if exists.
 *
 * @param sb string builder// w  w w. ja v a 2  s  . com
 * @param c the the character to be removed
 * @return original string builder
 */
public static StringBuilder removeLastCharacter(StringBuilder sb, char c) {
    if (sb == null) {
        return null;
    }
    int len = sb.length();
    if (len == 0) {
        return sb;
    }
    if (sb.charAt(len - 1) == c) {
        sb.setLength(len - 1);
    }
    return sb;
}

---

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