Example usage for java.lang Double toString

Introduction

In this page you can find the example usage for java.lang Double toString.

Prototype

public static String toString(double d) 

Source Link

Document

Returns a string representation of the double argument.

Usage

From source file:Main.java

/**
 * Method setDoubleAttribute/*  www  .j av  a  2  s.  c  o m*/
 * 
 * @param element
 * @param attributeName
 * @param value
 */
public static void setDoubleAttribute(Element element, String attributeName, double value) {
    element.setAttribute(attributeName, Double.toString(value));
}

---

From source file:Main.java

public static double round(double d, int decimalPlace) {
    // see the Javadoc about why we use a String in the constructor
    // http://java.sun.com/j2se/1.5.0/docs/api/java/math/BigDecimal.html#BigDecimal(double)
    BigDecimal bd = new BigDecimal(Double.toString(d));
    bd = bd.setScale(decimalPlace, BigDecimal.ROUND_HALF_UP);
    return bd.doubleValue();
}

---

From source file:Main.java

/**
 * replace point with comma in double values
 *
 * @param double value - ouble value with point as decimal point
 * @return String - string representation of the double value with comma instead of point
 *//*from  w  ww.ja  v  a2 s . c  om*/
public static String pointToComma(double value) {
    return Double.toString(value).replace(".", ",");
}

---

From source file:Main.java

public static double roundDouble(double v, int scale) {

    if (scale < 0) {

        throw new IllegalArgumentException(

                "The scale must be a positive integer or zero");

    }/*w w  w  . j a v  a2s.c  om*/

    BigDecimal b = new BigDecimal(Double.toString(v));

    BigDecimal one = new BigDecimal("1");

    return b.divide(one, scale, BigDecimal.ROUND_HALF_UP).doubleValue();

}

---

From source file:ReadTemp.java

/**
 * Method main//from  w ww .  j ava 2s .co  m
 *
 *
 * @param args
 *
 * @throws OneWireException
 * @throws OneWireIOException
 *
 */
public static void main(String[] args) throws OneWireIOException, OneWireException {
    boolean usedefault = false;
    DSPortAdapter access = null;
    String adapter_name = null;
    String port_name = null;

    variableNames = new HashMap();

    if ((args == null) || (args.length < 1)) {
        try {
            access = OneWireAccessProvider.getDefaultAdapter();

            if (access == null)
                throw new Exception();
        } catch (Exception e) {
            System.out.println("Couldn't get default adapter!");
            printUsageString();

            return;
        }

        usedefault = true;
    }

    if (!usedefault) {
        StringTokenizer st = new StringTokenizer(args[0], "_");

        if (st.countTokens() != 2) {
            printUsageString();

            return;
        }

        adapter_name = st.nextToken();
        port_name = st.nextToken();

        System.out.println("Adapter Name: " + adapter_name);
        System.out.println("Port Name: " + port_name);
    }

    if (access == null) {
        try {
            access = OneWireAccessProvider.getAdapter(adapter_name, port_name);
        } catch (Exception e) {
            System.out.println("That is not a valid adapter/port combination.");

            Enumeration en = OneWireAccessProvider.enumerateAllAdapters();

            while (en.hasMoreElements()) {
                DSPortAdapter temp = (DSPortAdapter) en.nextElement();

                System.out.println("Adapter: " + temp.getAdapterName());

                Enumeration f = temp.getPortNames();

                while (f.hasMoreElements()) {
                    System.out.println("   Port name : " + ((String) f.nextElement()));
                }
            }

            return;
        }
    }

    boolean scan = false;

    if (args.length > 1) {
        if (args[1].compareTo("--scan") == 0)
            scan = true;
    } else {
        populateVariableNames();
    }

    while (true) {
        access.adapterDetected();
        access.targetAllFamilies();
        access.beginExclusive(true);
        access.reset();
        access.setSearchAllDevices();

        boolean next = access.findFirstDevice();

        if (!next) {
            System.out.println("Could not find any iButtons!");

            return;
        }

        while (next) {
            OneWireContainer owc = access.getDeviceContainer();

            boolean isTempContainer = false;
            TemperatureContainer tc = null;

            try {
                tc = (TemperatureContainer) owc;
                isTempContainer = true;
            } catch (Exception e) {
                tc = null;
                isTempContainer = false; //just to reiterate
            }

            if (isTempContainer) {
                String id = owc.getAddressAsString();
                if (scan) {
                    System.out.println("= Temperature Sensor Found: " + id);
                } else {

                    double high = 0.0;
                    double low = 0.0;
                    byte[] state = tc.readDevice();

                    boolean selectable = tc.hasSelectableTemperatureResolution();

                    if (selectable)
                        try {
                            tc.setTemperatureResolution(0.0625, state);
                        } catch (Exception e) {
                            System.out.println("= Could not set resolution for " + id + ": " + e.toString());
                        }

                    try {
                        tc.writeDevice(state);
                    } catch (Exception e) {
                        System.out.println("= Could not write device state, all changes lost.");
                        System.out.println("= Exception occurred for " + id + ": " + e.toString());
                    }

                    boolean conversion = false;
                    try {
                        tc.doTemperatureConvert(state);
                        conversion = true;
                    } catch (Exception e) {
                        System.out.println("= Could not complete temperature conversion...");
                        System.out.println("= Exception occurred for " + id + ": " + e.toString());
                    }

                    if (conversion) {
                        state = tc.readDevice();

                        double temp = tc.getTemperature(state);
                        if (temp < 84) {
                            double temp_f = (9.0 / 5.0) * temp + 32;
                            setVariable(id, Double.toString(temp_f));
                        }
                        System.out.println("= Reported temperature from " + (String) variableNames.get(id) + "("
                                + id + "):" + temp);
                    }
                }
            }
            next = access.findNextDevice();
        }
        if (!scan) {
            try {
                Thread.sleep(60 * 5 * 1000);
            } catch (Exception e) {
            }
        } else {
            System.exit(0);
        }
    }
}

---

From source file:Main.java

/**
 * Formats the double as a string which is cleaned up a bit. This will return 0 for 0.0.
 * /*  w  w w .ja va 2 s .  c o m*/
 * @param num Number to be formatted.
 * @return Number as a string.
 */
private static String formatAsString(double num) {
    String res = Double.toString(num);

    if (res.endsWith(".0")) {
        res = res.substring(0, res.length() - 2);
    }

    if (res.equals("-0")) {
        res = "0";
    }

    return res;
}

---

From source file:Main.java

public static final double sub(double v1, double v2) {
    BigDecimal b1 = new BigDecimal(Double.toString(v1));
    BigDecimal b2 = new BigDecimal(Double.toString(v2));
    return (b1.subtract(b2)).doubleValue();
}

---

From source file:Main.java

public static String getFormatSize(double size) {
    if (0 == size) {
        return "0K";
    }/*w  w  w. j av  a2s  . c o m*/

    double kiloByte = size / 1024;
    double megaByte = kiloByte / 1024;
    if (megaByte < 1) {
        BigDecimal result1 = new BigDecimal(Double.toString(kiloByte));
        return result1.setScale(2, BigDecimal.ROUND_HALF_UP).stripTrailingZeros().toPlainString() + "K";
    }

    double gigaByte = megaByte / 1024;
    if (gigaByte < 1) {
        BigDecimal result2 = new BigDecimal(Double.toString(megaByte));
        return result2.setScale(2, BigDecimal.ROUND_HALF_UP).stripTrailingZeros().toPlainString() + "M";
    }

    double teraBytes = gigaByte / 1024;
    if (teraBytes < 1) {
        BigDecimal result3 = new BigDecimal(Double.toString(gigaByte));
        return result3.setScale(2, BigDecimal.ROUND_HALF_UP).stripTrailingZeros().toPlainString() + "G";
    }
    BigDecimal result4 = new BigDecimal(teraBytes);
    return result4.setScale(2, BigDecimal.ROUND_HALF_UP).stripTrailingZeros().toPlainString() + "T";
}

---

From source file:Main.java

private static String getFormatSize(double size) {
    double kiloByte = size / 1024;
    if (kiloByte < 1) {
        return size + "Byte";
    }/*  w  w  w .j a va2 s . c o  m*/
    double megaByte = kiloByte / 1024;
    if (megaByte < 1) {
        BigDecimal result1 = new BigDecimal(Double.toString(kiloByte));
        return result1.setScale(2, BigDecimal.ROUND_HALF_UP).toPlainString() + "KB";
    }
    double gigaByte = megaByte / 1024;
    if (gigaByte < 1) {
        BigDecimal result2 = new BigDecimal(Double.toString(megaByte));
        return result2.setScale(2, BigDecimal.ROUND_HALF_UP).toPlainString() + "MB";
    }
    double teraBytes = gigaByte / 1024;
    if (teraBytes < 1) {
        BigDecimal result3 = new BigDecimal(Double.toString(gigaByte));
        return result3.setScale(2, BigDecimal.ROUND_HALF_UP).toPlainString() + "GB";
    }
    BigDecimal result4 = new BigDecimal(teraBytes);
    return result4.setScale(2, BigDecimal.ROUND_HALF_UP).toPlainString() + "TB";
}

---

From source file:Main.java

public static String formatFileSize(double size) {
    double kiloByte = size / 1024;
    if (kiloByte < 1) {
        return size + "B";
    }/*  w w w  . ja v a  2  s.co m*/

    double megaByte = kiloByte / 1024;
    if (megaByte < 1) {
        BigDecimal result1 = new BigDecimal(Double.toString(kiloByte));
        return result1.setScale(2, BigDecimal.ROUND_HALF_UP).toPlainString() + "KB";
    }

    double gigaByte = megaByte / 1024;
    if (gigaByte < 1) {
        BigDecimal result2 = new BigDecimal(Double.toString(megaByte));
        return result2.setScale(2, BigDecimal.ROUND_HALF_UP).toPlainString() + "MB";
    }

    double teraBytes = gigaByte / 1024;
    if (teraBytes < 1) {
        BigDecimal result3 = new BigDecimal(Double.toString(gigaByte));
        return result3.setScale(2, BigDecimal.ROUND_HALF_UP).toPlainString() + "GB";
    }
    BigDecimal result4 = new BigDecimal(teraBytes);
    return result4.setScale(2, BigDecimal.ROUND_HALF_UP).toPlainString() + "TB";
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• »