Example usage for java.math BigDecimal BigDecimal

Introduction

In this page you can find the example usage for java.math BigDecimal BigDecimal.

Prototype

public BigDecimal(long val)

Source Link

Document

Translates a long into a BigDecimal .

Usage

From source file:Main.java

public static String formatPercentWithFixedFractionDigit(BigDecimal number, int fractionDigit) {
    String result = "0";

    if (number != null) {
        number = number.multiply(new BigDecimal("100"));
        DecimalFormat formatter = new DecimalFormat();
        formatter.setMaximumFractionDigits(fractionDigit);
        formatter.setMinimumFractionDigits(fractionDigit);

        result = formatter.format(number);
    }//ww  w  .  j  av a2  s  . c o m
    return result;
}

From source file:Main.java

public static Object round(Object value, int places) {
    // if (places < 0) throw new IllegalArgumentException();
    if (places < 0 || !(value instanceof Double)) {
        return value;
    }//w w  w. j ava  2 s . c o  m
    BigDecimal bd = new BigDecimal((Double) value);
    bd = bd.setScale(places, BigDecimal.ROUND_HALF_UP);
    return bd.doubleValue();
}

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

public static float roundFloat(Float v, int scale) {

    if (scale < 0) {

        throw new IllegalArgumentException(

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

    }/*  w  ww.  j a  v  a 2  s  .  com*/

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

    BigDecimal one = new BigDecimal("1");

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

}

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");

    }//from www  . j  ava  2  s. co m

    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:Main.java

public static double divAddGoods(String value1, String value2) {
    if ("0.".equals(value2)) {
        value2 = "1";
    }/*  ww  w  .  ja  v a 2s .  c  om*/

    double v1 = Double.parseDouble(value1);
    double v2 = Double.parseDouble(value2);
    BigDecimal b1 = new BigDecimal(v1);
    BigDecimal b2 = new BigDecimal((v2));
    return b1.divide(b2, 2, BigDecimal.ROUND_HALF_UP).doubleValue();
}

From source file:Main.java

public static BigDecimal calculateDiscountAmt(BigDecimal Discount, BigDecimal DiscountAmt) {
    if (DiscountAmt == null || Discount.compareTo(BigDecimal.ZERO) == 0)
        return BigDecimal.ZERO;
    else {//from   ww w .j av a2 s  .  c om
        BigDecimal discountPerc = Discount.divide(new BigDecimal(100));
        return DiscountAmt.multiply(discountPerc);
    }
}

From source file:Main.java

public static Bitmap compressBitmap(Bitmap bitmap, int width, int height, boolean isAdjust) {
    if (bitmap.getWidth() > width || bitmap.getHeight() > height) {
        float scaleX = new BigDecimal(width).divide(new BigDecimal(bitmap.getWidth()), 4, BigDecimal.ROUND_DOWN)
                .floatValue();//www .ja v a  2 s. c om
        float scaleY = new BigDecimal(height)
                .divide(new BigDecimal(bitmap.getHeight()), 4, BigDecimal.ROUND_DOWN).floatValue();
        if (isAdjust) {
            scaleX = (scaleX < scaleY ? scaleX : scaleY);
            scaleY = scaleX;
        }
        Matrix matrix = new Matrix();
        matrix.postScale(scaleX, scaleY);
        bitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
    }
    return bitmap;
}

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";
    }/*from  ww  w .j a va2s  . co  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";
}