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

public static String getFormatSize(double size) {
    double kiloByte = size / 1024;
    if (kiloByte < 1) {
        return size + "Byte(s)";
    }//w w  w  .j a v  a2s  . 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 getFormatSize(double size) {
    double kiloByte = size / 1024.0D;
    if (kiloByte < 1.0D) {
        return size + " B"; // Byte(s)
    }/*from w w w.j a  va 2  s. c  om*/

    double megaByte = kiloByte / 1024.0D;
    if (megaByte < 1.0D) {
        BigDecimal result1 = new BigDecimal(Double.toString(kiloByte));
        return result1.setScale(2, 4).toPlainString() + " KB";
    }

    double gigaByte = megaByte / 1024.0D;
    if (gigaByte < 1.0D) {
        BigDecimal result2 = new BigDecimal(Double.toString(megaByte));
        return result2.setScale(2, 4).toPlainString() + " MB";
    }

    double teraBytes = gigaByte / 1024.0D;
    if (teraBytes < 1.0D) {
        BigDecimal result3 = new BigDecimal(Double.toString(gigaByte));
        return result3.setScale(2, 4).toPlainString() + " GB";
    }
    BigDecimal result4 = new BigDecimal(teraBytes);
    return result4.setScale(2, 4).toPlainString() + " TB";
}

From source file:Main.java

public static String getCssColor(int color) {
    // using %f for the double value would result in a localized string, e.g. 0,12 which
    // would be an invalid css color string
    return String.format("rgba(%d,%d,%d,%s)", Color.red(color), Color.green(color), Color.blue(color),
            Double.toString(Color.alpha(color) / 255.0));
}

From source file:Main.java

/**
 * Convert a double into a String without scientific notation.
 *
 * This is useful for XPath 1.0, which does not understand the scientific notation.
 *//*from   w w w  . ja v a  2  s.  co  m*/
public static String removeScientificNotation(double value) {

    String result = Double.toString(value);
    int eIndex = result.indexOf('E');

    if (eIndex == -1) {
        // No scientific notation, return value as is
        return stripZeros(result);
    } else {
        // Scientific notation, convert value

        // Parse string representation
        String mantissa = result.substring(0, eIndex);
        boolean negative = mantissa.charAt(0) == '-';
        String sign = negative ? "-" : "";
        String mantissa1 = mantissa.substring(negative ? 1 : 0, negative ? 2 : 1);
        String mantissa2 = mantissa.substring(negative ? 3 : 2);
        int exponent = Integer.parseInt(result.substring(eIndex + 1));

        // Calculate result
        if (exponent > 0) {
            // Positive exponent, shift decimal point to the right
            int mantissa2Length = mantissa2.length();
            if (exponent > mantissa2Length) {
                result = sign + mantissa1 + mantissa2 + nZeros(exponent - mantissa2Length);
            } else if (exponent == mantissa2Length) {
                result = sign + mantissa1 + mantissa2;
            } else {
                result = sign + mantissa1 + mantissa2.substring(0, exponent) + '.'
                        + mantissa2.substring(exponent);
            }
        } else if (exponent == 0) {
            // Not sure if this can happen
            result = mantissa;
        } else {
            // Negative exponent, shift decimal point to the left
            result = sign + '0' + '.' + nZeros(-exponent - 1) + mantissa1 + mantissa2;
        }
        return stripZeros(result);
    }
}

From source file:Main.java

public static String getFormatSize(double size) {
    double kiloByte = size / 1024;
    if (kiloByte < 1) {
        return size + "B";
    }/*  ww  w . j  a va 2  s .  com*/

    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:LongToMSec.java

/** Convert a long ("time_t") to seconds and milliseconds */
public static String msToSecs(long t) {
    // The first attempt fails for the case "1024"
    //return t/1000 + "." + t%1000;

    return Double.toString(t / 1000D);
}

From source file:Main.java

public static void addDoubleProperty(Document document, Element parent, String name, double value) {
    addPropertyNode(document, parent, name).setAttribute(DOUBLE_ATTR, Double.toString(value));
}

From source file:Main.java

public static void MercatorToBD(double mercatorX, double mercatorY) {
    CbdX = mercatorY / 20037508.34 * 180;
    CbdX = 180 / Math.PI * (2 * Math.atan(Math.exp(CbdX * Math.PI / 180)) - Math.PI / 2);
    CbdY = mercatorX / 20037508.34 * 180;

    Log.d("CustomerActivity", "x" + Double.toString(CbdX));
    Log.d("CustomerActivity", "y" + Double.toString(CbdY));
}

From source file:Main.java

public static void addFloatProperty(Document document, Element parent, String name, double value) {
    addPropertyNode(document, parent, name).setAttribute(FLOAT_ATTR, Double.toString(value));
}

From source file:Main.java

public static double divide(double v1, double v2, int scale) {
    if (scale < 0) {
        throw new IllegalArgumentException("The scale must be a positive integer or zero");
    }//from  www. j  a v  a2s .  c  o m
    BigDecimal b = new BigDecimal(Double.toString(v1));
    BigDecimal one = new BigDecimal(v2);
    return b.divide(one, scale, BigDecimal.ROUND_HALF_UP).doubleValue();
}