Example usage for java.text DecimalFormat format

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:com.cloudera.impala.testutil.ImpalaJdbcClient.java

private static String formatColumnValue(String colVal, String columnType) throws NumberFormatException {
    columnType = columnType.toLowerCase();
    if (colVal == null) {
        return columnType.equals("string") ? "'NULL'" : "NULL";
    }/*  www  .  ja  va  2 s.co m*/

    if (columnType.equals("string")) {
        return "'" + colVal + "'";
    } else if (columnType.equals("float") || columnType.equals("double")) {
        // Fixup formatting of float/double values to match the expected test
        // results
        DecimalFormat df = new DecimalFormat("#.##################################");
        double doubleVal = Double.parseDouble(colVal);
        return df.format(doubleVal);
    }
    return colVal;
}

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From source file:Main.java

public static String getCompressedNumberString(int num) {
    DecimalFormat df = new DecimalFormat("0.0");
    double tg = num;
    int si = 0;//from   ww  w. j a  v a2 s . co  m
    while (tg > 1000) {
        tg /= 1000.0;
        si++;
    }
    if ((int) tg == num) {
        df = new DecimalFormat("0");
    } else {
        df = new DecimalFormat("0.0");
    }
    StringBuilder sb = new StringBuilder();
    sb.append(df.format(tg));
    sb.append(numberSuffixes[si]);
    return sb.toString();
}

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From source file:freenet.support.TimeUtil.java

/**
     * It converts a given time interval into a 
     * week/day/hour/second.milliseconds string.
     * @param timeInterval interval to convert
     * @param maxTerms the terms number to display
     * (e.g. 2 means "h" and "m" if the time could be expressed in hour,
     * 3 means "h","m","s" in the same example).
     * The maximum terms number available is 6
     * @param withSecondFractions if true it displays seconds.milliseconds
     * @return the formatted String/*from   www  .java  2s .  c om*/
     */
    public static String formatTime(long timeInterval, int maxTerms, boolean withSecondFractions) {

        if (maxTerms > 6)
            throw new IllegalArgumentException();

        StringBuilder sb = new StringBuilder(64);
        long l = timeInterval;
        int termCount = 0;
        //
        if (l < 0) {
            sb.append('-');
            l = l * -1;
        }
        if (!withSecondFractions && l < 1000) {
            return "0";
        }
        if (termCount >= maxTerms) {
            return sb.toString();
        }
        //
        long weeks = (l / (7L * 24 * 60 * 60 * 1000));
        if (weeks > 0) {
            sb.append(weeks).append('w');
            termCount++;
            l = l - (weeks * (7L * 24 * 60 * 60 * 1000));
        }
        if (termCount >= maxTerms) {
            return sb.toString();
        }
        //
        long days = (l / (24L * 60 * 60 * 1000));
        if (days > 0) {
            sb.append(days).append('d');
            termCount++;
            l = l - (days * (24L * 60 * 60 * 1000));
        }
        if (termCount >= maxTerms) {
            return sb.toString();
        }
        //
        long hours = (l / (60L * 60 * 1000));
        if (hours > 0) {
            sb.append(hours).append('h');
            termCount++;
            l = l - (hours * (60L * 60 * 1000));
        }
        if (termCount >= maxTerms) {
            return sb.toString();
        }
        //
        long minutes = (l / (60L * 1000));
        if (minutes > 0) {
            sb.append(minutes).append('m');
            termCount++;
            l = l - (minutes * (60L * 1000));
        }
        if (termCount >= maxTerms) {
            return sb.toString();
        }
        if (withSecondFractions && ((maxTerms - termCount) >= 2)) {
            if (l > 0) {
                double fractionalSeconds = l / (1000.0D);
                DecimalFormat fix3 = new DecimalFormat("0.000");
                sb.append(fix3.format(fractionalSeconds)).append('s');
                termCount++;
                //l = l - ((long)fractionalSeconds * (long)1000);
            }
        } else {
            long seconds = (l / 1000L);
            if (seconds > 0) {
                sb.append(seconds).append('s');
                termCount++;
                //l = l - ((long)seconds * (long)1000);
            }
        }
        //
        return sb.toString();
    }

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From source file:com.aimdek.ccm.util.CommonUtil.java

/**
 * Gets the number with two decimal place.
 *
 * @param number//w  ww .  j  a va 2 s.c om
 *            the number
 * @return the number with two decimal place
 */
public static String getNumberWithTwoDecimalPlace(double number) {
    DecimalFormat decimalFormat = new DecimalFormat(TWO_DECIMAL_PLACE_FORMAT);
    return decimalFormat.format(number);
}

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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), // ...
            "+----" };
}

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From source file:com.searchbox.framework.web.SystemController.java

/**
 * Return good default units based on byte size.
 *//*w w  w  . j av a 2s.  co m*/
private static String humanReadableUnits(long bytes, DecimalFormat df) {
    String newSizeAndUnits;

    if (bytes / ONE_GB > 0) {
        newSizeAndUnits = String.valueOf(df.format((float) bytes / ONE_GB)) + " GB";
    } else if (bytes / ONE_MB > 0) {
        newSizeAndUnits = String.valueOf(df.format((float) bytes / ONE_MB)) + " MB";
    } else if (bytes / ONE_KB > 0) {
        newSizeAndUnits = String.valueOf(df.format((float) bytes / ONE_KB)) + " KB";
    } else {
        newSizeAndUnits = String.valueOf(bytes) + " bytes";
    }

    return newSizeAndUnits;
}

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From source file:com.jslsolucoes.tagria.lib.util.TagUtil.java

public static String format(String type, String value, JspContext jspContext) {

    if (StringUtils.isEmpty(value)) {
        return value;
    } else if ("date".equals(type) || "timestamp".equals(type) || "hour".equals(type)) {

        DateFormat dateFormat = DateFormat.getDateTimeInstance();
        if ("timestamp".equals(type)) {
            dateFormat = DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.MEDIUM,
                    locale(jspContext));
        } else if ("date".equals(type)) {
            dateFormat = DateFormat.getDateInstance(DateFormat.MEDIUM, locale(jspContext));
        } else if ("hour".equals(type)) {
            dateFormat = DateFormat.getTimeInstance(DateFormat.MEDIUM, locale(jspContext));
        }//from www.ja va2s . co  m
        List<String> patterns = new ArrayList<>();
        patterns.add("yyyy-MM-dd HH:mm:ss");
        patterns.add("yyyy-MM-dd");
        patterns.add("E MMM dd HH:mm:ss zzz yyyy");
        for (String pattern : patterns) {
            try {
                return dateFormat.format(new SimpleDateFormat(pattern, Locale.ENGLISH).parse(value));
            } catch (ParseException pe) {
                //Try another format
            }
        }
        return value;
    } else if ("currency".equals(type)) {
        DecimalFormat nf = new DecimalFormat("#,##0.00", new DecimalFormatSymbols(locale(jspContext)));
        return nf.format(new Double(value));
    } else if ("cep".equals(type)) {
        return String.format("%08d", Long.valueOf(value)).replaceAll("^([0-9]{5})([0-9]{3})$", "$1-$2");
    } else if ("cpf".equals(type)) {
        return String.format("%011d", Long.valueOf(value))
                .replaceAll("^([0-9]{3})([0-9]{3})([0-9]{3})([0-9]{2})$", "$1.$2.$3-$4");
    } else if ("cnpj".equals(type)) {
        return String.format("%014d", Long.valueOf(value))
                .replaceAll("^([0-9]{2})([0-9]{3})([0-9]{3})([0-9]{4})([0-9]{2})$", "$1.$2.$3/$4-$5");
    } else if ("tel".equals(type)) {
        return String.format("%010d", Long.valueOf(value)).replaceAll("^([0-9]{2})([0-9]{4,5})([0-9]{4})$",
                "($1) $2-$3");
    }
    return value;
}

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From source file:CV.java

public static String statOutput(DecimalFormat df, Stat stat, String unit) {
    String str = "av. " + df.format(stat.getMean()) + unit;
    str += " (deviation " + df.format(stat.getStandardDeviation()) + unit + "; ";
    str += "min " + df.format(stat.getMin()) + unit + "; ";
    str += "max " + df.format(stat.getMax()) + unit + ")";
    return str;//from   w w w.  ja  v a  2 s .  co  m
}

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From source file:com.fengduo.bee.commons.util.StringFormatter.java

public static String float2format(Double d) {
    if (d == null) {
        return ZERO_STR;
    }//from w  ww.ja  v a  2s. com

    BigDecimal b = new BigDecimal(d);
    float fb = b.setScale(SCALE_TWO, BigDecimal.ROUND_DOWN).floatValue();
    DecimalFormat format = new DecimalFormat(FORMAT);
    return format.format(fb).toString();
}

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From source file:net.kamhon.ieagle.util.CollectionUtil.java

private static Object processForNumber(Object object, String propertyName, Object propValue) {
    BeanWrapper wrapper = new BeanWrapperImpl(object);
    PropertyDescriptor descriptor = wrapper.getPropertyDescriptor(propertyName);
    Method method = descriptor.getReadMethod();
    TypeConversion typeConversion = method.getAnnotation(TypeConversion.class);
    if (typeConversion != null) {
        String convertor = typeConversion.converter();
        if (convertor.equalsIgnoreCase(FrameworkConst.STRUTS_DECIMAL_CONVERTER)) {
            DecimalFormat df = new DecimalFormat(FrameworkConst.DEFAULT_DECIMAL_FORMAT);
            return df.format(propValue);
        } else {//  w  ww  . j a v  a 2s.c  o  m
            return propValue;
        }
    } else {
        if (propValue instanceof Double || propValue instanceof Float) {
            DecimalFormat df = new DecimalFormat(FrameworkConst.DEFAULT_DECIMAL_FORMAT);
            return df.format(propValue);
        } else {
            return propValue;
        }
    }
}

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