Example usage for java.text DecimalFormat DecimalFormat

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.l2jfree.lang.L2System.java

public static String[] getMemoryUsageStatistics() {
    double max = Runtime.getRuntime().maxMemory() / 1024.0; // maxMemory is the upper limit the jvm can use
    double allocated = Runtime.getRuntime().totalMemory() / 1024.0; //totalMemory the size of the current allocation pool
    double nonAllocated = max - allocated; //non allocated memory till jvm limit
    double cached = Runtime.getRuntime().freeMemory() / 1024.0; // freeMemory the unused memory in the allocation pool
    double used = allocated - cached; // really used memory
    double useable = max - used; //allocated, but non-used and non-allocated memory

    SimpleDateFormat sdf = new SimpleDateFormat("H:mm:ss");
    DecimalFormat df = new DecimalFormat(" (0.0000'%')");
    DecimalFormat df2 = new DecimalFormat(" # 'KB'");

    return new String[] { "+----", // ...
            "| Global Memory Informations at " + sdf.format(new Date()) + ":", // ...
            "|    |", // ...
            "| Allowed Memory:" + df2.format(max),
            "|    |= Allocated Memory:" + df2.format(allocated) + df.format(allocated / max * 100),
            "|    |= Non-Allocated Memory:" + df2.format(nonAllocated) + df.format(nonAllocated / max * 100),
            "| Allocated Memory:" + df2.format(allocated),
            "|    |= Used Memory:" + df2.format(used) + df.format(used / max * 100),
            "|    |= Unused (cached) Memory:" + df2.format(cached) + df.format(cached / max * 100),
            "| Useable Memory:" + df2.format(useable) + df.format(useable / max * 100), // ...
            "+----" };
}

From source file:com.carlomicieli.jtrains.value.objects.Length.java

private static double round(double v) {
    DecimalFormat df = new DecimalFormat("#.##");
    return Double.valueOf(df.format(v));
}

From source file:net.sf.dynamicreports.design.transformation.chartcustomizer.PieChartLabelFormatCustomizer.java

@Override
public void customize(JFreeChart chart, ReportParameters reportParameters) {
    PiePlot plot = (PiePlot) chart.getPlot();
    if (labelFormat == null) {
        plot.setLabelGenerator(null);//from  w w w. ja  va 2  s  .  c  om
    } else {
        plot.setLabelGenerator(new StandardPieSectionLabelGenerator(labelFormat,
                new DecimalFormat(valuePattern), new DecimalFormat(percentValuePattern + "%")));
    }
}

From source file:net.mindengine.galen.specs.Range.java

public static String doubleToString(Double value) {
    if (value != null) {
        return new DecimalFormat("#.##").format(value);
    } else// w ww .  j a  va  2s. com
        return "null";
}

From source file:com.leavesfly.lia.advsearching.SortingExample.java

public void displayResults(Query query, Sort sort) // #1
        throws IOException {
    IndexSearcher searcher = new IndexSearcher(directory);

    searcher.setDefaultFieldSortScoring(true, false); // #2

    TopDocs results = searcher.search(query, null, // #3
            20, sort); // #3

    System.out.println("\nResults for: " + // #4
            query.toString() + " sorted by " + sort);

    System.out.println(StringUtils.rightPad("Title", 30) + StringUtils.rightPad("pubmonth", 10)
            + StringUtils.center("id", 4) + StringUtils.center("score", 15));

    PrintStream out = new PrintStream(System.out, true, "UTF-8"); // #5

    DecimalFormat scoreFormatter = new DecimalFormat("0.######");
    for (ScoreDoc sd : results.scoreDocs) {
        int docID = sd.doc;
        float score = sd.score;
        Document doc = searcher.doc(docID);
        out.println(StringUtils.rightPad( // #6
                StringUtils.abbreviate(doc.get("title"), 29), 30) + // #6
                StringUtils.rightPad(doc.get("pubmonth"), 10) + // #6
                StringUtils.center("" + docID, 4) + // #6
                StringUtils.leftPad( // #6
                        scoreFormatter.format(score), 12)); // #6
        out.println("   " + doc.get("category"));
        // out.println(searcher.explain(query, docID)); // #7
    }//ww  w  .  j av  a 2 s  .  c o  m

    searcher.close();
}

From source file:com.deafgoat.ml.prognosticator.UserDefinedAttributeUnitTests.java

@Override
public String getAttributeValue(List<String> instance, Map<String, Integer> attributeMap, ConfigReader cfg) {
    String str3PMTemp = instance.get(attributeMap.get("Temp3pm"));
    String str9AMTemp = instance.get(attributeMap.get("Temp9am"));
    Double diffTemp = Double.parseDouble(str3PMTemp) - Double.parseDouble(str9AMTemp);
    NumberFormat formatter = new DecimalFormat("#0.00");
    return formatter.format(diffTemp);
}

From source file:com.frameworkset.platform.sanylog.common.BeanConvertUtil.java

/**
 * Map??Bean?.//www .  j a v  a  2 s .com
 * 
 * @param clazz
 * @param dataMap ?Map
 * @param fieldMap Map??fieldName
 * @return
 * @throws InstantiationException
 * @throws IllegalAccessException
 * @throws IllegalArgumentException
 * @throws InvocationTargetException
 * @throws NoSuchMethodException 
 */
public static <T> T convert(Class<T> clazz, Map<String, Object> dataMap, Map<String, String> fieldMap)
        throws InstantiationException, IllegalAccessException, IllegalArgumentException,
        InvocationTargetException, NoSuchMethodException {
    T obj = clazz.newInstance();
    ClassInfo classInfo = ClassUtil.getClassInfo(clazz);
    for (String mapKey : fieldMap.keySet()) {
        Object value = dataMap.get(mapKey);
        String fieldName = fieldMap.get(mapKey);
        if (value != null) {
            //classInfo.getDeclaredField(fieldName).set(obj, value);
            PropertieDescription pd = classInfo.getPropertyDescriptor(fieldName);
            //??
            Class<?> pclazz = pd.getPropertyType();

            if (Timestamp.class.isAssignableFrom(pclazz)) {
                if (value instanceof Date) {
                    pd.setValue(obj, new Timestamp(((Date) value).getTime()));
                }
            } else if (Date.class.isAssignableFrom(pclazz)) {
                //String
                if (value instanceof Date) {
                    pd.setValue(obj, value);
                }
            } else {
                Object targetValue = pclazz.getConstructor(String.class).newInstance(value.toString());
                if (String.class.isAssignableFrom(pclazz) && value instanceof Number) {
                    targetValue = new DecimalFormat("0").format(value);
                }
                pd.setValue(obj, targetValue);
            }
            //PropertyUtils.setProperty(obj, fieldName, value);
        }
    }
    return obj;
}

From source file:fr.bde_eseo.eseomega.ingenews.IngenewsItem.java

public String getFormattedSize() {
    if (size >= MBYTE) {
        return new DecimalFormat("0.0").format(size / MBYTE) + MBYTE_STR;
    } else if (size >= KBYTE && size < MBYTE) {
        return new DecimalFormat("0.0").format(size / KBYTE) + KBYTE_STR;
    } else {/* w ww . ja  va2 s . c  om*/
        return new DecimalFormat("0.0").format(size / BYTE) + BYTE_STR;
    }
}

From source file:com.edduarte.argus.util.Constants.java

public static String fileSizeToString(long size) {
    if (size <= 0) {
        return "0 kb";
    }//from   w  w  w. j a  v a 2s .c o m

    final String[] units = new String[] { "bytes", "KB", "MB", "GB", "TB" };
    int digitGroups = (int) (Math.log10(size) / Math.log10(1024));
    return new DecimalFormat("#,##0.#").format(size / Math.pow(1024, digitGroups)) + " " + units[digitGroups];
}

From source file:com.lm.lic.manager.util.GenUtil.java

public static double roundToTwoDecimals(double d) {
    DecimalFormat twoDecimalFormatter = new DecimalFormat("#.##");
    twoDecimalFormatter.setRoundingMode(RoundingMode.DOWN);
    return Double.valueOf(twoDecimalFormatter.format(d));
}