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:Main.java

static void showPrice(BigDecimal price) {
    DecimalFormat format = new DecimalFormat("0.00");
    String text = String.format("Price: $%5s", format.format(price));
    System.out.println(text);//  w  w  w .  j  av  a 2s .c  o m
}

From source file:Main.java

public static double roundTwoDecimals(double d) {
    // try {//from   ww w  . ja  va2  s  .c om
    //DecimalFormat twoDForm = new DecimalFormat("#.#", DecimalFormatSymbols.getInstance(Locale.getDefault()));
    // NumberFormat nf = NumberFormat.getNumberInstance(Locale.GERMAN);
    DecimalFormat dFormat = new DecimalFormat("####,###,###.#");

    return Double.valueOf(dFormat.format(d));
    /**}
    catch (Exception exx)
    {
    return  d;
    }**/
}

From source file:Main.java

private static String FormetFileSize(long fileS) {
    DecimalFormat df = new DecimalFormat("#.00");
    String fileSizeString = "";
    String wrongSize = "0B";
    if (fileS == 0) {
        return wrongSize;
    }//ww  w .  ja  v a  2 s.c o  m
    if (fileS < 1024) {
        fileSizeString = df.format((double) fileS) + "B";
    } else if (fileS < 1048576) {
        fileSizeString = df.format((double) fileS / 1024) + "KB";
    } else if (fileS < 1073741824) {
        fileSizeString = df.format((double) fileS / 1048576) + "MB";
    } else {
        fileSizeString = df.format((double) fileS / 1073741824) + "GB";
    }
    return fileSizeString;
}

From source file:Main.java

public static String readableFileSize(long size) {
    if (size <= 0)
        return "0KB";
    final String[] units = new String[] { "B", "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:Main.java

public static double getDPI(Activity activity) {
    return calculateDPI(getWidth(activity), getHeight(activity),
            Double.valueOf(new DecimalFormat("#.##").format(getScreenSize(activity))));
}

From source file:Main.java

public static float getTotalRAM() {
    RandomAccessFile reader = null;
    String load = null;//  w  w w  .ja  v  a2  s  .  c  o m
    DecimalFormat twoDecimalForm = new DecimalFormat("#.##");
    double totRam = 0;
    float lastValue = 0;
    try {
        reader = new RandomAccessFile("/proc/meminfo", "r");
        load = reader.readLine();

        // Get the Number value from the string
        Pattern p = Pattern.compile("(\\d+)");
        Matcher m = p.matcher(load);
        String value = "";
        while (m.find()) {
            value = m.group(1);
            // System.out.println("Ram : " + value);
        }
        reader.close();

        totRam = Double.parseDouble(value);
        // totRam = totRam / 1024;

        float mb = (float) (totRam / 1024.0f);
        float gb = (float) (totRam / 1048576.0f);
        float tb = (float) (totRam / 1073741824.0f);

        lastValue = gb;
    } catch (IOException ex) {
        ex.printStackTrace();
    } finally {
        // Streams.close(reader);
    }

    return lastValue;
}

From source file:Main.java

protected static final String encodingUTF8andSignPrefix(byte[] src, int srart, int length) throws Exception {
    byte[] b = new String(src, srart, length, "euc-kr").getBytes("utf-8");
    String str = new String(b).trim();
    str = str.substring(searchChar(str));
    DecimalFormat f = new DecimalFormat("###,###,###");
    f.setPositivePrefix("+");
    f.setNegativePrefix("-");
    return f.format(Double.parseDouble(str));
}

From source file:Main.java

/**
 * Convert a number of kilometers to miles.
 * @param km number of km to convert/*from   www .  j  a v a  2 s.  c o m*/
 * @return number of km in miles
 */
public static double asMiles(final double km) {
    DecimalFormat twoDForm = new DecimalFormat("#.##");
    return Double.valueOf(twoDForm.format(km * MILES_CONVERT));
}

From source file:Main.java

/**
 * // ww w .  java 2s. c om
 * @param number
 * @return
 */
public static String getDecimalNumber(long number, float divider) {
    DecimalFormat format = new DecimalFormat("#0.0");
    return format.format(number / divider);
}

From source file:Main.java

public static String BTC2Fiat(String btc) {
    double val = 0.0;

    try {//from  w ww  . j  av  a 2  s.c  o m
        val = Double.parseDouble(btc);
    } catch (NumberFormatException nfe) {
        val = 0.0;
    }

    DecimalFormat df = new DecimalFormat("######0.00");
    return df.format(BTC2Fiat(val));
}