Example usage for java.text DecimalFormat DecimalFormat

List of usage examples for java.text DecimalFormat DecimalFormat

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Introduction

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

Prototype

public DecimalFormat(String pattern)

Source Link

Document

Creates a DecimalFormat using the given pattern and the symbols for the default java.util.Locale.Category#FORMAT FORMAT locale.

Usage

From source file:com.ipeirotis.gal.core.CategoryPair.java

public static void main(String[] args) {

    Category a = new Category("A");
    Category b = new Category("B");

    a.setPrior(0.5);/*w  ww.  j a v  a2  s .  c o  m*/
    b.setPrior(0.5);

    a.setCost("A", 0.0);
    a.setCost("B", 1.0);
    b.setCost("A", 1.0);
    b.setCost("B", 0.0);

    Collection<Category> categories = new HashSet<Category>();
    categories.add(a);
    categories.add(b);

    Map<String, Category> map = new HashMap<String, Category>();
    map.put("A", a);
    map.put("B", b);

    ConfusionMatrix cm = new ConfusionMatrix(categories);

    // FOR TESTS: 
    // q=1 should return 0 cost
    // q=1 should not be affected by m

    /*
    cm.setErrorRate("A", "A", 0.9);
    cm.setErrorRate("A", "B", 0.1);
    cm.setErrorRate("B", "B", 0.0);
    cm.setErrorRate("B", "A", 1.0);
            
            
    double tau=0.01;
    double w = cm.getWorkerWage(1.0, tau, map);
    double pwage = Double.valueOf(new DecimalFormat("#.####").format(w));
    double pworkers = Double.valueOf(new DecimalFormat("#.####").format(1.0/w));
    System.out.print("\t"+pwage+"\t"+pworkers);
    */

    //double q=0.9;

    for (int Q = 95; Q >= 55; Q -= 5) {

        double q = Q / 100.0;

        cm.setErrorRate("A", "A", q);
        cm.setErrorRate("A", "B", 1 - q);
        cm.setErrorRate("B", "B", q);
        cm.setErrorRate("B", "A", 1 - q);

        // Classification cost of a set of m workers with the confusion matrix given above 
        /*
        for (int m = 1; m<=40; m+=2) {
           System.out.print(q+"\t"+m);
           Double c = cm.getWorkerCost(m, map, 100*m*m);
           System.out.println("\t"+Math.round(100000*c)/100000.0);
        }
        */

        for (double tau = 0.1; tau > 0.0001; tau /= 1.5) {

            double pq = Double.valueOf(new DecimalFormat("#.##").format(q));
            double ptau = Double.valueOf(new DecimalFormat("#.####").format((1 - tau)));
            System.out.print(pq + "\t" + ptau);

            double w = cm.getWorkerWage(1.0, tau, map);
            double pwage = Double.valueOf(new DecimalFormat("#.####").format(w));
            double pworkers = Double.valueOf(new DecimalFormat("#.####").format(1.0 / w));
            System.out.print("\t" + pwage + "\t" + pworkers);

            double wr = cm.getWorkerWageRegr(1.0, tau, map);
            double pwager = Double.valueOf(new DecimalFormat("#.####").format(wr));
            double pworkersr = Double.valueOf(new DecimalFormat("#.####").format(1.0 / wr));
            System.out.print("\t" + pwager + "\t" + pworkersr);
            System.out.println();
        }

    }

}

From source file:com.kryshchuk.maven.plugins.jfreechart.LineChartAxis.java

public void setupAxis(final NumberAxis axis) {
    if (format != null) {
        axis.setNumberFormatOverride(new DecimalFormat(format));
    }/*from   ww w .  j  ava  2 s  .  co  m*/
    axis.setAutoRangeIncludesZero(false);
    // axis.setStandardTickUnits(new StandardTickUnitSource());
}

From source file:com.uber.hoodie.cli.commands.StatsCommand.java

@CliCommand(value = "stats wa", help = "Write Amplification. Ratio of how many records were upserted to how many records were actually written")
public String writeAmplificationStats() throws IOException {
    long totalRecordsUpserted = 0;
    long totalRecordsWritten = 0;

    HoodieActiveTimeline activeTimeline = HoodieCLI.tableMetadata.getActiveTimeline();
    HoodieTimeline timeline = activeTimeline.getCommitTimeline().filterCompletedInstants();

    String[][] rows = new String[new Long(timeline.countInstants()).intValue() + 1][];
    int i = 0;/*www .  j ava  2 s.  c o m*/
    DecimalFormat df = new DecimalFormat("#.00");
    for (HoodieInstant commitTime : timeline.getInstants().collect(Collectors.toList())) {
        String waf = "0";
        HoodieCommitMetadata commit = HoodieCommitMetadata
                .fromBytes(activeTimeline.getInstantDetails(commitTime).get());
        if (commit.fetchTotalUpdateRecordsWritten() > 0) {
            waf = df.format(
                    (float) commit.fetchTotalRecordsWritten() / commit.fetchTotalUpdateRecordsWritten());
        }
        rows[i++] = new String[] { commitTime.getTimestamp(),
                String.valueOf(commit.fetchTotalUpdateRecordsWritten()),
                String.valueOf(commit.fetchTotalRecordsWritten()), waf };
        totalRecordsUpserted += commit.fetchTotalUpdateRecordsWritten();
        totalRecordsWritten += commit.fetchTotalRecordsWritten();
    }
    String waf = "0";
    if (totalRecordsUpserted > 0) {
        waf = df.format((float) totalRecordsWritten / totalRecordsUpserted);
    }
    rows[i] = new String[] { "Total", String.valueOf(totalRecordsUpserted), String.valueOf(totalRecordsWritten),
            waf };
    return HoodiePrintHelper.print(
            new String[] { "CommitTime", "Total Upserted", "Total Written", "Write Amplifiation Factor" },
            rows);

}

From source file:servlet.SalesReportPieChart.java

/**
 * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
 * methods./*from  www .  j a v a2 s.  com*/
 *
 * @param request servlet request
 * @param response servlet response
 * @throws ServletException if a servlet-specific error occurs
 * @throws IOException if an I/O error occurs
 */
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    DefaultPieDataset dataset = new DefaultPieDataset();
    int totalTickets = Integer.valueOf(request.getParameter("totalTickets"));
    int totalSoldTickets = Integer.valueOf(request.getParameter("totalSoldTickets"));

    dataset.setValue("Unsold Tickets", new Double(totalTickets - totalSoldTickets));
    dataset.setValue("Sold Tickets", new Double(totalSoldTickets));

    JFreeChart chart = ChartFactory.createPieChart("Ticket Sales", // chart title
            dataset, // data
            true, // include legend
            true, false);

    PiePlot plot = (PiePlot) chart.getPlot();
    plot.setSectionPaint("Unsold Tickets", Color.DARK_GRAY);
    plot.setSectionPaint("Sold Tickets", Color.CYAN);
    plot.setExplodePercent("Unsold Tickets", 0.10);
    plot.setSimpleLabels(true);
    plot.setBackgroundPaint(Color.WHITE);

    PieSectionLabelGenerator gen = new StandardPieSectionLabelGenerator("{0}: {1} ({2})",
            new DecimalFormat("0"), new DecimalFormat("0%"));
    plot.setLabelGenerator(gen);

    final ChartRenderingInfo info = new ChartRenderingInfo(new StandardEntityCollection());

    int width = 500; /* Width of the image */

    int height = 400; /* Height of the image */

    response.setContentType("image/png");
    OutputStream out = response.getOutputStream();

    ChartUtilities.writeChartAsPNG(out, chart, 400, 300, info);
}

From source file:com.kingcore.framework.util.ConvertUtils.java

/**
 * ?/*from   w ww.j a  v  a 2s. c  om*/
 * Create on 2003-6-18
 * @param float 
 * @param int ???
 * @return
 * @throws Exception
 */
public static String formatNumber(float number, int scalar) throws Exception {
    String zero = "000000000000000000000000000000";
    String format = "##0." + zero.substring(0, scalar);
    NumberFormat nf = new DecimalFormat(format);
    return nf.format(number);
}

From source file:com.sra.biotech.submittool.persistence.service.SubmissionServiceImpl.java

@Override
public Submission findSubmission(Long key) {

    DecimalFormat intFormat = new DecimalFormat("#");
    String strKey = intFormat.format(key);

    Submission submission = restTemplate
            .getForObject(getSubmissionUrlTemplate() + "/{key}", SubmissionResource.class, strKey).getContent();

    return submission;
}

From source file:com.pivotal.gemfire.tools.pulse.internal.service.ClusterMemberService.java

public JSONObject execute(final HttpServletRequest request) throws Exception {

    // get cluster object
    Cluster cluster = Repository.get().getCluster();

    // json object to be sent as response
    JSONObject responseJSON = new JSONObject();

    Cluster.Member[] clusterMembersList = cluster.getMembers();

    // create members json
    List<JSONObject> memberListJson = new ArrayList<JSONObject>();
    try {/*from ww  w .  ja  v  a2s .  c  om*/
        for (Cluster.Member clusterMember : clusterMembersList) {
            JSONObject memberJSON = new JSONObject();
            // getting members detail
            memberJSON.put("memberId", clusterMember.getId());
            memberJSON.put("name", clusterMember.getName());
            memberJSON.put("host", clusterMember.getHost());

            DecimalFormat df2 = new DecimalFormat(PulseConstants.DECIMAL_FORMAT_PATTERN);

            long usedHeapSize = cluster.getUsedHeapSize();
            long currentHeap = clusterMember.getCurrentHeapSize();
            if (usedHeapSize > 0) {
                float heapUsage = ((float) currentHeap / (float) usedHeapSize) * 100;
                memberJSON.put(this.HEAP_USAGE, Double.valueOf(df2.format(heapUsage)));
            } else {
                memberJSON.put(this.HEAP_USAGE, 0);
            }
            Float currentCPUUsage = clusterMember.getCpuUsage();

            memberJSON.put("cpuUsage", Float.valueOf(df2.format(currentCPUUsage)));
            memberJSON.put("currentHeapUsage", clusterMember.getCurrentHeapSize());
            memberJSON.put("isManager", clusterMember.isManager());
            memberJSON.put("uptime", TimeUtils.convertTimeSecondsToHMS(clusterMember.getUptime()));
            memberJSON.put("loadAvg", clusterMember.getLoadAverage());
            memberJSON.put("sockets", clusterMember.getTotalFileDescriptorOpen());
            memberJSON.put("openFDs", clusterMember.getTotalFileDescriptorOpen());
            memberJSON.put("threads", clusterMember.getNumThreads());

            // Number of member clients
            if (PulseController.getPulseProductSupport()
                    .equalsIgnoreCase(PulseConstants.PRODUCT_NAME_GEMFIREXD)) {
                memberJSON.put("clients", clusterMember.getNumGemFireXDClients());
            } else {
                memberJSON.put("clients", clusterMember.getMemberClientsHMap().size());
            }
            memberJSON.put("queues", clusterMember.getQueueBacklog());

            memberListJson.add(memberJSON);
        }
        // clucter's Members
        responseJSON.put("members", memberListJson);
        // Send json response
        return responseJSON;
    } catch (JSONException e) {
        throw new Exception(e);
    }
}

From source file:com.jennifer.ui.chart.brush.LineBrush.java

protected DomUtil createLine(JSONObject pos, int index) {
    JSONArray x = JSONUtil.clone(pos.getJSONArray("x"));
    JSONArray y = JSONUtil.clone(pos.getJSONArray("y"));
    JSONArray valueList = JSONUtil.clone(pos.getJSONArray("value"));
    DecimalFormat format = new DecimalFormat(".##");
    String _color = color(index);
    Transform t = null;/*from   w w w. ja  v  a2 s . c  om*/

    Transform g = new Transform("g");
    Path p = new Path(new JSONObject().put("stroke", _color).put("stroke-width", chart.theme("lineBorderWidth"))
            .put("fill", "transparent"));

    p.MoveTo(x.getDouble(0), y.getDouble(0));

    if (Brush.SYMBOL_CURVE.equals(symbol)) {
        JSONObject px = this.curvePoints(x);
        JSONObject py = this.curvePoints(y);

        for (int i = 0, len = x.length(); i < len; i++) {
            p.CurveTo(px.getJSONArray("p1").getDouble(i), py.getJSONArray("p1").getDouble(i),
                    px.getJSONArray("p2").getDouble(i), py.getJSONArray("p2").getDouble(i), x.getDouble(i + 1),
                    y.getDouble(i + 1));
        }
    } else {

        double maxValue = Double.MIN_VALUE;
        t = null;

        for (int i = 0, len = x.length(); i < len - 1; i++) {
            if (Brush.SYMBOL_STEP.equals(symbol)) {
                p.LineTo(x.getDouble(i), y.getDouble(i + 1));
            }

            double xValue = x.getDouble(i + 1);
            double yValue = y.getDouble(i + 1);
            double valueValue = valueList.getDouble(i + 1);

            p.LineTo(xValue, yValue);

            // display max value
            if (valueValue > maxValue) {
                maxValue = valueValue;
                t = createMaxElement(xValue, yValue, formatNumber(valueValue), _color);
            }

        }

    }

    // ??  
    if (move) {
        double range = (x.getDouble(2) - x.getDouble(1)) / 2;
        g.translate(range, 0);
    }

    g.append(p);
    g.append(t);

    return g;
}

From source file:vn.edu.vttu.ui.PanelStatiticsService.java

private void showChart() {
    SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    DefaultPieDataset dataset = new DefaultPieDataset();
    int row = tbResult.getRowCount();
    for (int i = 0; i < row; i++) {
        totalNumber = totalNumber + Integer.parseInt(String.valueOf(tbResult.getValueAt(i, 3)));
    }/*from  ww  w. j  a  v a2  s.  c  o m*/
    for (int i = 0; i < row; i++) {
        double value = 0;
        try {
            try {
                value = Double
                        .parseDouble(String.valueOf(tbResult.getValueAt(i, 3)).trim().replaceAll("\\.", ""));
            } catch (Exception e) {
                value = Double
                        .parseDouble(String.valueOf(tbResult.getValueAt(i, 3)).trim().replaceAll(",", ""));
            }
        } catch (Exception e) {
            value = 0;
        }
        String name = String.valueOf(tbResult.getValueAt(i, 1)).trim();
        DecimalFormat df = new DecimalFormat("###,##");
        value = (value / totalNumber) * 100;
        System.out.println(totalNumber);
        dataset.setValue(name, value);
    }

    JFreeChart chart = ChartFactory.createPieChart3D("TH?NG K T L S DNG DCH V", dataset,
            true, true, true);
    PiePlot3D p = (PiePlot3D) chart.getPlot();
    p.setNoDataMessage("Khng c d liu thng k");
    ChartPanel CP = new ChartPanel(chart);
    pnChart.removeAll();
    pnChart.add(CP);
    pnChart.updateUI();
    pnChart.repaint();
    //ChartFrame frame = new ChartFrame("Thng k doanh thu", chart);
    //frame.setSize(450, 350);
    //frame.setVisible(true);
}

From source file:ChartUsingJava.CombinedXYPlotDemo1.java

/**
 * Creates an overlaid chart.//from  w ww . jav a 2  s . c  o m
 *
 * @return The chart.
 */
private static JFreeChart createCombinedChart() {

    // create plot ...
    IntervalXYDataset data1 = createDataset1();
    XYItemRenderer renderer1 = new XYLineAndShapeRenderer(true, false);
    renderer1.setBaseToolTipGenerator(
            new StandardXYToolTipGenerator(StandardXYToolTipGenerator.DEFAULT_TOOL_TIP_FORMAT,
                    new SimpleDateFormat("d-MMM-yyyy"), new DecimalFormat("0.00")));
    renderer1.setSeriesStroke(0, new BasicStroke(4.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL));
    renderer1.setSeriesPaint(0, Color.blue);

    DateAxis domainAxis = new DateAxis("Year");
    domainAxis.setLowerMargin(0.0);
    domainAxis.setUpperMargin(0.02);
    ValueAxis rangeAxis = new NumberAxis("$billion");
    XYPlot plot1 = new XYPlot(data1, null, rangeAxis, renderer1);
    plot1.setBackgroundPaint(Color.lightGray);
    plot1.setDomainGridlinePaint(Color.white);
    plot1.setRangeGridlinePaint(Color.white);

    // add a second dataset and renderer...
    IntervalXYDataset data2 = createDataset2();
    XYBarRenderer renderer2 = new XYBarRenderer() {
        public Paint getItemPaint(int series, int item) {
            XYDataset dataset = getPlot().getDataset();
            if (dataset.getYValue(series, item) >= 0.0) {
                return Color.red;
            } else {
                return Color.green;
            }
        }
    };
    renderer2.setSeriesPaint(0, Color.red);
    renderer2.setDrawBarOutline(false);
    renderer2.setBaseToolTipGenerator(
            new StandardXYToolTipGenerator(StandardXYToolTipGenerator.DEFAULT_TOOL_TIP_FORMAT,
                    new SimpleDateFormat("d-MMM-yyyy"), new DecimalFormat("0.00")));

    XYPlot plot2 = new XYPlot(data2, null, new NumberAxis("$billion"), renderer2);
    plot2.setBackgroundPaint(Color.lightGray);
    plot2.setDomainGridlinePaint(Color.white);
    plot2.setRangeGridlinePaint(Color.white);

    CombinedXYPlot cplot = new CombinedXYPlot(domainAxis, rangeAxis);
    cplot.add(plot1, 3);
    cplot.add(plot2, 2);
    cplot.setGap(8.0);
    cplot.setDomainGridlinePaint(Color.white);
    cplot.setDomainGridlinesVisible(true);

    // return a new chart containing the overlaid plot...
    JFreeChart chart = new JFreeChart("CombinedXYPlotDemo1", JFreeChart.DEFAULT_TITLE_FONT, cplot, false);
    chart.setBackgroundPaint(Color.white);
    LegendTitle legend = new LegendTitle(cplot);
    chart.addSubtitle(legend);
    return chart;
}