Example usage for java.lang StringBuffer insert

Introduction

In this page you can find the example usage for java.lang StringBuffer insert.

Prototype

@Override
public StringBuffer insert(int offset, double d) 

Source Link

Usage

From source file:ClassUtils.java

/**
 * Build a nice qualified name for an array:
 * component type class name + "[]"./*from   w  w  w.  j a v a 2s .c  o m*/
 * @param clazz the array class
 * @return a qualified name for the array class
 */
private static String getQualifiedNameForArray(Class clazz) {
    StringBuffer buffer = new StringBuffer();
    while (clazz.isArray()) {
        clazz = clazz.getComponentType();
        buffer.append(ClassUtils.ARRAY_SUFFIX);
    }
    buffer.insert(0, clazz.getName());
    return buffer.toString();
}

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From source file:StringUtils.java

static public String padWithLeadingZeros(String string, int desiredLength) {
    StringBuffer bff = new StringBuffer(string);
    while (bff.length() < desiredLength)
        bff.insert(0, '0');
    return bff.toString();
}

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From source file:com.spaceprogram.simplejpa.util.AmazonSimpleDBUtil.java

public static String encodeRealNumberRange(BigDecimal number, int maxDigitsLeft, int maxDigitsRight,
        BigDecimal offsetValue) {
    BigDecimal shiftMultiplier = new BigDecimal(Math.pow(10, maxDigitsRight));
    //        System.out.println("shiftMultiplier=" + shiftMultiplier);
    BigDecimal shiftedNumber = number.multiply(shiftMultiplier);
    //        System.out.println("shiftedNumber=" + shiftedNumber);
    shiftedNumber = shiftedNumber.setScale(0, BigDecimal.ROUND_HALF_UP);
    //        System.out.println("shiftedNumber rounded=" + shiftedNumber);
    BigDecimal shiftedOffset = offsetValue.multiply(shiftMultiplier);
    //        System.out.println("shiftedOffset=" + shiftedOffset);
    BigDecimal offsetNumber = shiftedNumber.add(shiftedOffset);
    //        System.out.println("offsetNumber=" + offsetNumber);
    String longString = offsetNumber.toString();
    //        System.out.println("shifted string=" + longString);
    int numBeforeDecimal = longString.length();
    int numZeroes = maxDigitsLeft + maxDigitsRight - numBeforeDecimal;
    StringBuffer strBuffer = new StringBuffer(numZeroes + longString.length());
    for (int i = 0; i < numZeroes; i++) {
        strBuffer.insert(i, '0');
    }//from   ww w  . j  a  v  a2s. c om
    strBuffer.append(longString);
    return strBuffer.toString();
}

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From source file:net.fenyo.gnetwatch.GenericTools.java

static public String formatNumericString(final Config config, final String value) {
    final StringBuffer result = new StringBuffer();
    for (int idx = value.length() - 1; idx >= 0; idx--) {
        if (idx != value.length() - 1 && (value.length() - 1 - idx) % 3 == 0)
            result.insert(0, config.getString("numeric_separator"));
        result.insert(0, value.charAt(idx));
    }//from w  ww . j a  v  a 2  s.co m
    return result.toString();
}

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From source file:Main.java

private static String convertStringToTime(String oldTime) {
    if (oldTime == null || oldTime.length() == 0) {
        return "00h00m00s";
    }//from w w w  . j a  v a  2 s .  com

    boolean hasHours = (oldTime.indexOf('h') != -1);
    boolean hasMinutes = (oldTime.indexOf('m') != -1);
    StringBuffer rtn = new StringBuffer(oldTime);

    // Delete the seconds fields and replace other chars with colons
    rtn.deleteCharAt(oldTime.indexOf('s'));

    if (hasMinutes) {
        rtn.setCharAt(oldTime.indexOf('m'), ':');
    } else {
        rtn.insert(0, "00:");
    }

    if (hasHours) {
        rtn.setCharAt(oldTime.indexOf('h'), ':');
    } else {
        rtn.insert(0, "00:");
    }

    StringTokenizer st = new StringTokenizer(rtn.toString(), ":");
    int index = 1;
    String hh = "00";
    String mm = "00";
    String ss = "00";

    while (st.hasMoreTokens()) {
        String toke = st.nextToken();

        switch (index) {
        case 1:
            if (toke.length() < 2) {
                hh = "0" + toke;
            } else {
                hh = toke;
            }
            break;

        case 2:
            if (toke.length() < 2) {
                mm = "0" + toke;
            } else {
                mm = toke;
            }
            break;

        case 3:
            if (toke.length() < 2) {
                ss = "0" + toke;
            } else {
                ss = toke;
            }
            break;
        }

        index++;
    }

    return hh + "h" + mm + "m" + ss + "s";
}

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From source file:Main.java

/**
 * Searches for a node within a DOM document with a given node path expression.
 * Elements are separated by '.' characters.
 * Example: Foo.Bar.Poo//from ww w. ja  v  a 2s .c  o  m
 * @param doc DOM Document to search for a node.
 * @param pathExpression dot separated path expression
 * @return Node element found in the DOM document.
 */
public static Node findNodeByName(Document doc, String pathExpression) {
    final StringTokenizer tok = new StringTokenizer(pathExpression, ".");
    final int numToks = tok.countTokens();
    NodeList elements;
    if (numToks == 1) {
        elements = doc.getElementsByTagNameNS("*", pathExpression);
        return elements.item(0);
    }

    String element = pathExpression.substring(pathExpression.lastIndexOf('.') + 1);
    elements = doc.getElementsByTagNameNS("*", element);

    String attributeName = null;
    if (elements.getLength() == 0) {
        //No element found, but maybe we are searching for an attribute
        attributeName = element;

        //cut off attributeName and set element to next token and continue
        Node found = findNodeByName(doc,
                pathExpression.substring(0, pathExpression.length() - attributeName.length() - 1));

        if (found != null) {
            return found.getAttributes().getNamedItem(attributeName);
        } else {
            return null;
        }
    }

    StringBuffer pathName;
    Node parent;
    for (int j = 0; j < elements.getLength(); j++) {
        int cnt = numToks - 1;
        pathName = new StringBuffer(element);
        parent = elements.item(j).getParentNode();
        do {
            if (parent != null) {
                pathName.insert(0, '.');
                pathName.insert(0, parent.getLocalName());//getNodeName());

                parent = parent.getParentNode();
            }
        } while (parent != null && --cnt > 0);
        if (pathName.toString().equals(pathExpression)) {
            return elements.item(j);
        }
    }

    return null;
}

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From source file:ExecuteSQL.java

/**
 * This method attempts to output the contents of a ResultSet in a textual
 * table. It relies on the ResultSetMetaData class, but a fair bit of the
 * code is simple string manipulation.// w  ww .  jav  a 2s. co m
 */
static void printResultsTable(ResultSet rs, OutputStream output) throws SQLException {
    // Set up the output stream
    PrintWriter out = new PrintWriter(output);

    // Get some "meta data" (column names, etc.) about the results
    ResultSetMetaData metadata = rs.getMetaData();

    // Variables to hold important data about the table to be displayed
    int numcols = metadata.getColumnCount(); // how many columns
    String[] labels = new String[numcols]; // the column labels
    int[] colwidths = new int[numcols]; // the width of each
    int[] colpos = new int[numcols]; // start position of each
    int linewidth; // total width of table

    // Figure out how wide the columns are, where each one begins,
    // how wide each row of the table will be, etc.
    linewidth = 1; // for the initial '|'.
    for (int i = 0; i < numcols; i++) { // for each column
        colpos[i] = linewidth; // save its position
        labels[i] = metadata.getColumnLabel(i + 1); // get its label
        // Get the column width. If the db doesn't report one, guess
        // 30 characters. Then check the length of the label, and use
        // it if it is larger than the column width
        int size = metadata.getColumnDisplaySize(i + 1);
        if (size == -1)
            size = 30; // Some drivers return -1...
        if (size > 500)
            size = 30; // Don't allow unreasonable sizes
        int labelsize = labels[i].length();
        if (labelsize > size)
            size = labelsize;
        colwidths[i] = size + 1; // save the column the size
        linewidth += colwidths[i] + 2; // increment total size
    }

    // Create a horizontal divider line we use in the table.
    // Also create a blank line that is the initial value of each
    // line of the table
    StringBuffer divider = new StringBuffer(linewidth);
    StringBuffer blankline = new StringBuffer(linewidth);
    for (int i = 0; i < linewidth; i++) {
        divider.insert(i, '-');
        blankline.insert(i, " ");
    }
    // Put special marks in the divider line at the column positions
    for (int i = 0; i < numcols; i++)
        divider.setCharAt(colpos[i] - 1, '+');
    divider.setCharAt(linewidth - 1, '+');

    // Begin the table output with a divider line
    out.println(divider);

    // The next line of the table contains the column labels.
    // Begin with a blank line, and put the column names and column
    // divider characters "|" into it. overwrite() is defined below.
    StringBuffer line = new StringBuffer(blankline.toString());
    line.setCharAt(0, '|');
    for (int i = 0; i < numcols; i++) {
        int pos = colpos[i] + 1 + (colwidths[i] - labels[i].length()) / 2;
        overwrite(line, pos, labels[i]);
        overwrite(line, colpos[i] + colwidths[i], " |");
    }

    // Then output the line of column labels and another divider
    out.println(line);
    out.println(divider);

    // Now, output the table data. Loop through the ResultSet, using
    // the next() method to get the rows one at a time. Obtain the
    // value of each column with getObject(), and output it, much as
    // we did for the column labels above.
    while (rs.next()) {
        line = new StringBuffer(blankline.toString());
        line.setCharAt(0, '|');
        for (int i = 0; i < numcols; i++) {
            Object value = rs.getObject(i + 1);
            if (value != null)
                overwrite(line, colpos[i] + 1, value.toString().trim());
            overwrite(line, colpos[i] + colwidths[i], " |");
        }
        out.println(line);
    }

    // Finally, end the table with one last divider line.
    out.println(divider);
    out.flush();
}

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From source file:de.xwic.appkit.core.model.util.FormatUtils.java

/**
 * Splits a number string into pairs seperated by a space. If the 
 * number of numbers is not a multiple of 2, the first number stands 
 * alone./*from  www  .j av  a2s  .  c o m*/
 * @param num
 * @return
 */
private static String splashNumber(String num) {

    // splash lastNo
    StringBuffer sb = new StringBuffer();
    int nr = 0;
    for (int i = num.length() - 1; i >= 0; i--) {
        char c = num.charAt(i);
        if (c >= '0' && c <= '9') {
            if (nr == 2) {
                sb.insert(0, ' ');
                nr = 0;
            }
            sb.insert(0, c);
            nr++;
        } else if (c == '-') {
            sb.insert(0, " - ");
            nr = 0;
        } else {
            sb.insert(0, c);
        }
    }
    return sb.toString();

}

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From source file:org.executequery.gui.text.TextUtilities.java

public static void insertFromFile(JTextComponent textComponent) {
    StringBuffer buf = null;//  w ww.  ja va  2s.  co m
    String text = null;

    FileChooserDialog fileChooser = new FileChooserDialog();
    fileChooser.setDialogTitle("Insert from file");
    fileChooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
    fileChooser.setDialogType(JFileChooser.OPEN_DIALOG);
    int result = fileChooser.showDialog(GUIUtilities.getInFocusDialogOrWindow(), "Insert");

    if (result == JFileChooser.CANCEL_OPTION)
        return;

    File file = fileChooser.getSelectedFile();

    try {
        FileInputStream input = new FileInputStream(file);
        BufferedReader reader = new BufferedReader(new InputStreamReader(input));
        buf = new StringBuffer(10000);

        char newLine = '\n';

        while ((text = reader.readLine()) != null)
            buf.append(text).append(newLine);

        reader.close();
        reader = null;
        input.close();
        input = null;

        int index = textComponent.getCaretPosition();
        StringBuffer sb = new StringBuffer(textComponent.getText());
        sb.insert(index, buf.toString());
        textComponent.setText(sb.toString());
        textComponent.setCaretPosition(index + buf.length());

    } catch (OutOfMemoryError e) {
        buf = null;
        text = null;
        System.gc();
        GUIUtilities.displayErrorMessage("Out of Memory.\nThe file is " + "too large to\nopen for viewing.");
    } catch (IOException e) {
        e.printStackTrace();
        StringBuffer sb = new StringBuffer();
        sb.append("An error occurred opening the selected file.").append("\n\nThe system returned:\n")
                .append(e.getMessage());
        GUIUtilities.displayExceptionErrorDialog(sb.toString(), e);
    }

}

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From source file:com.aw.core.dao.AWQueryRunner.java

public static String buildSQLLog(String sql, Object[] filterKeys) {
    StringBuffer buf = new StringBuffer();
    buf.append(sql);/*from   www.  ja  v  a2s  .  c om*/
    int idx = 0;
    while (buf.indexOf("?") >= 0) {
        int pos = buf.indexOf("?");
        buf.deleteCharAt(pos);
        Object filterKey = filterKeys[idx];
        if (filterKey instanceof String)
            filterKey = "'" + filterKey + "'";
        buf.insert(pos, filterKey);
        idx++;
    }
    //        if (filterKeys != null) {
    //            buf.append(" params:");
    //            buf.append(Arrays.asList(filterKeys).toString());
    //        }
    return buf.toString();
}

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