Example usage for java.text DecimalFormat format

List of usage examples for java.text DecimalFormat format

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Introduction

In this page you can find the example usage for java.text DecimalFormat format.

Prototype

public final String format(double number)

Source Link

Document

Specialization of format.

Usage

From source file:bigtweet.model.StudyingBeacons.java

/**
 * Extra ouput file to generate a chart 
 * call plotBeaconStudy in R project to obtain chart
 *//* ww w  . j a  v  a 2s .  co m*/
private void generateBatchOuputForChart(JSONArray parametersValues, int parametersValuesIndex,
        double meanEndorsers) {

    JSONObject parameters = (JSONObject) parametersValues.get(parametersValuesIndex);//parameters
    JSONObject aux = new JSONObject();
    aux.put("links", parameters.get("beaconLinksNumber"));
    aux.put("centrality", parameters.get("beaconLinksCentrality"));
    DecimalFormatSymbols otherSymbols = new DecimalFormatSymbols(Locale.US);
    DecimalFormat df = new DecimalFormat("0.000", otherSymbols);
    aux.put("meanEndorsers", df.format(meanEndorsers));
    JSONForChart.add(aux);

    //write json file
    FileWriter file;
    try {
        file = new FileWriter(batchOutputFileForChart);
        file.write(JSONForChart.toJSONString());
        file.flush();
        file.close();
    } catch (Exception ex) {
        Logger.getLogger(BTSimBatch.class.getName()).log(Level.SEVERE, null, ex);
    }
}

From source file:eu.uqasar.util.UQasarUtil.java

/**
 * Round double to two decimals//from w w w  . j  a  v a 2  s.  c om
 * @param number
 * @return
 */
public static Double round(double number) {
    DecimalFormat df = new DecimalFormat("#,##");
    df.setRoundingMode(RoundingMode.DOWN);
    String s = df.format(number);
    return Double.valueOf(s);
}

From source file:com.yahoo.platform.yui.coverage.report.FileReport.java

/**
 * Returns the percentage of lines called.
 * @return The percentage of lines called.
 * @throws org.json.JSONException//from ww w .jav a2  s.  co m
 */
public double getCalledLinePercentage() throws JSONException {
    DecimalFormat twoDForm = new DecimalFormat("#.##");
    return Double
            .valueOf(twoDForm.format(((double) getCalledLineCount() / (double) getTotalLineCount()) * 100));
}

From source file:com.yahoo.platform.yui.coverage.report.FileReport.java

/**
 * Returns the percentage of functions called.
 * @return The percentage of functions called.
 * @throws org.json.JSONException//from w  ww .j  a  v a2  s . co  m
 */
public double getCalledFunctionPercentage() throws JSONException {
    DecimalFormat twoDForm = new DecimalFormat("#.##");
    return Double.valueOf(
            twoDForm.format(((double) getCalledFunctionCount() / (double) getTotalFunctionCount()) * 100));
}

From source file:com.gym.controller.UsuarioController.java

public Collection<String> cargaPeso() {

    Collection<String> peso = new ArrayList<String>();
    //Collection<Float> peso = new ArrayList<Float>();

    //Float a = 40.0F;
    Double a = 40.0;/*from  www . j a v  a  2  s .  c  o  m*/

    DecimalFormat format = new DecimalFormat("0.0");

    //for (a=40.0F; a<140.0F; a=a+0.1F) {
    for (a = 40.0; a < 140; a = a + 0.1) {
        format.format(a);
        peso.add(format.format(a));
    }
    return peso;
}

From source file:piazza.services.ingest.util.GeoJsonSerializer.java

private void writePointCoords(JsonGenerator jgen, Point p) throws IOException {
    jgen.writeStartArray();/*from  w w  w.ja v a  2s  .  c  o  m*/
    DecimalFormat df = new DecimalFormat("#.#");
    df.setMaximumFractionDigits(8);
    jgen.writeNumber(df.format(p.getX()));
    jgen.writeNumber(df.format(p.getY()));
    jgen.writeEndArray();
}

From source file:gda.gui.beans.PVScannableBean.java

@Override
protected void refreshValues() {
    synchronized (this) {
        try {//from  w w  w  .  j a  v a2 s . c o  m
            // get the units
            Object unit = theScannable.getAttribute(PVScannable.UNITSATTRIBUTE);
            if (unit != null) {
                unitsString = unit.toString();
            } else {
                unitsString = "";
            }

            // generate the tooltip
            tooltipString = theScannable.getName() + " ";

            // display the current value
            Double currentPosition = ScannableUtils.getCurrentPositionArray(theScannable)[0];
            if (isZeroSmallNumbers() && currentPosition < 0.0001) {
                DecimalFormat myFormat = new DecimalFormat();
                myFormat.applyPattern("#####.###");
                valueString = myFormat.format(currentPosition).trim();
            } else {
                valueString = String.format("%5.3g", currentPosition).trim();
            }
        } catch (DeviceException e) {
            logger.error("Exception while trying to move " + scannableName + ": " + e.getMessage());
        }
    }
}

From source file:com.unicornlabs.kabouter.reporting.PowerReport.java

public static void GeneratePowerReport(Date startDate, Date endDate) {
    try {//from  w w w  .  java  2 s .co m
        Historian theHistorian = (Historian) BusinessObjectManager.getBusinessObject(Historian.class.getName());
        ArrayList<String> powerLogDeviceIds = theHistorian.getPowerLogDeviceIds();

        Document document = new Document(PageSize.A4, 50, 50, 50, 50);

        File outputFile = new File("PowerReport.pdf");
        outputFile.createNewFile();

        PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(outputFile));
        document.open();

        document.add(new Paragraph("Power Report for " + startDate.toString() + " to " + endDate.toString()));

        document.newPage();

        DecimalFormat df = new DecimalFormat("#.###");

        for (String deviceId : powerLogDeviceIds) {
            ArrayList<Powerlog> powerlogs = theHistorian.getPowerlogs(deviceId, startDate, endDate);
            double total = 0;
            double max = 0;
            Date maxTime = startDate;
            double average = 0;
            XYSeries series = new XYSeries(deviceId);
            XYDataset dataset = new XYSeriesCollection(series);

            for (Powerlog log : powerlogs) {
                total += log.getPower();
                if (log.getPower() > max) {
                    max = log.getPower();
                    maxTime = log.getId().getLogtime();
                }
                series.add(log.getId().getLogtime().getTime(), log.getPower());
            }

            average = total / powerlogs.size();

            document.add(new Paragraph("\nDevice: " + deviceId));
            document.add(new Paragraph("Average Power Usage: " + df.format(average)));
            document.add(new Paragraph("Maximum Power Usage: " + df.format(max) + " at " + maxTime.toString()));
            document.add(new Paragraph("Total Power Usage: " + df.format(total)));
            //Create a custom date axis to display dates on the X axis
            DateAxis dateAxis = new DateAxis("Date");
            //Make the labels vertical
            dateAxis.setVerticalTickLabels(true);

            //Create the power axis
            NumberAxis powerAxis = new NumberAxis("Power");

            //Set both axes to auto range for their values
            powerAxis.setAutoRange(true);
            dateAxis.setAutoRange(true);

            //Create the tooltip generator
            StandardXYToolTipGenerator ttg = new StandardXYToolTipGenerator("{0}: {2}",
                    new SimpleDateFormat("yyyy/MM/dd HH:mm"), NumberFormat.getInstance());

            //Set the renderer
            StandardXYItemRenderer renderer = new StandardXYItemRenderer(StandardXYItemRenderer.LINES, ttg,
                    null);

            //Create the plot
            XYPlot plot = new XYPlot(dataset, dateAxis, powerAxis, renderer);

            //Create the chart
            JFreeChart myChart = new JFreeChart(deviceId, JFreeChart.DEFAULT_TITLE_FONT, plot, true);

            PdfContentByte pcb = writer.getDirectContent();
            PdfTemplate tp = pcb.createTemplate(480, 360);
            Graphics2D g2d = tp.createGraphics(480, 360, new DefaultFontMapper());
            Rectangle2D r2d = new Rectangle2D.Double(0, 0, 480, 360);
            myChart.draw(g2d, r2d);
            g2d.dispose();
            pcb.addTemplate(tp, 0, 0);

            document.newPage();
        }

        document.close();

        JOptionPane.showMessageDialog(null, "Report Generated.");

        Desktop.getDesktop().open(outputFile);
    } catch (FileNotFoundException fnfe) {
        JOptionPane.showMessageDialog(null,
                "Unable To Open File For Writing, Make Sure It Is Not Currently Open");
    } catch (IOException ex) {
        Logger.getLogger(PowerReport.class.getName()).log(Level.SEVERE, null, ex);
    } catch (DocumentException ex) {
        Logger.getLogger(PowerReport.class.getName()).log(Level.SEVERE, null, ex);
    }
}

From source file:com.cisco.dvbu.ps.common.util.jdbcapi.JdbcConnector.java

/**
 * Creates a java.sql.Connection to a CIS server based on server.xml configuration
 * /*from   w  ww . j a v  a2 s .  c  o  m*/
 * @param serverId              serverId in servers.xml
 * @param pathToServersXML        path to servers.xml
 * @param pubDs                 published datasource to connect to. 
 * 
 * @return  java.sql.Connection   established JDBC connection
 * @throws CompositeException
 */
public Connection connectToCis(CompositeServer cisServerConfig, String pubDs) throws CompositeException {
    String url = null;
    Connection conn = null;

    // Validate input:
    try {
        validateCisConnectionParams(cisServerConfig);
    } catch (CompositeException e) {
        throw e;
    }

    // Get config values:        

    String host = cisServerConfig.getHostname();
    String jdbcPort = new Integer((cisServerConfig.getPort() + 1)).toString(); // 
    String cisDomain = cisServerConfig.getDomain();
    String userName = cisServerConfig.getUser();
    String userPwd = CommonUtils.decrypt(cisServerConfig.getPassword());

    long startTime = System.currentTimeMillis();
    if (logger.isDebugEnabled()) {
        logger.debug("Started establishing JDBC connection to CIS server " + host + ":" + jdbcPort);
    }

    try {
        Class.forName("cs.jdbc.driver.CompositeDriver");

        url = "jdbc:compositesw:dbapi@" + host + ":" + jdbcPort + "?domain=" + cisDomain + "&dataSource="
                + pubDs; // e.g. "system";     

        conn = DriverManager.getConnection(url, userName, userPwd);
    } catch (ClassNotFoundException e) {
        logger.error("Problem loading jdbc driver:\n", e);
        throw new CompositeException("Problem loading jdbc driver:\n" + e.getMessage());
    } catch (Exception e) {
        logger.error("Exception caught: \n", e);
        throw new CompositeException("Exception caught:\n" + e.getMessage());
    }

    long endTime = System.currentTimeMillis();
    DecimalFormat threeDForm = new DecimalFormat("#.###");
    double elapsedTime = Double.valueOf(threeDForm.format((0.001 * (endTime - startTime))));
    if (logger.isDebugEnabled()) {
        logger.debug("CIS connection was established in " + elapsedTime + " seconds for database " + pubDs);
    }

    return conn;
}

From source file:com.exilant.eGov.src.reports.GeneralLedgerReport.java

public static StringBuffer numberToString(final String strNumberToConvert) {
    String strNumber = "", signBit = "";
    if (strNumberToConvert.startsWith("-")) {
        strNumber = "" + strNumberToConvert.substring(1, strNumberToConvert.length());
        signBit = "-";
    } else/*from  ww  w .j  ava  2 s . co m*/
        strNumber = "" + strNumberToConvert;
    final DecimalFormat dft = new DecimalFormat("##############0.00");
    final String strtemp = "" + dft.format(Double.parseDouble(strNumber));
    StringBuffer strbNumber = new StringBuffer(strtemp);
    final int intLen = strbNumber.length();

    for (int i = intLen - 6; i > 0; i = i - 2)
        strbNumber.insert(i, ',');
    if (signBit.equals("-"))
        strbNumber = strbNumber.insert(0, "-");
    return strbNumber;
}