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

private static double round(double value, int places) {
    if (places < 0)
        throw new IllegalArgumentException();

    BigDecimal bd = new BigDecimal(value);
    bd = bd.setScale(places, RoundingMode.HALF_UP);
    return bd.doubleValue();
}

From source file:Main.java

public static float round(double value, int places) {
    if (places < 0)
        throw new IllegalArgumentException();

    BigDecimal bd = new BigDecimal(value);
    bd = bd.setScale(places, RoundingMode.HALF_UP);
    return bd.floatValue();
}

From source file:Main.java

private static Float precision(int decimalPlace, Float d) {

    BigDecimal bd = new BigDecimal(Float.toString(d));
    bd = bd.setScale(decimalPlace, BigDecimal.ROUND_HALF_UP);
    return bd.floatValue();
}

From source file:Main.java

public static String formatPercent(BigDecimal number) {
    String result = "0";

    if (number != null) {
        number = number.multiply(new BigDecimal("100"));
        DecimalFormat formatter = new DecimalFormat();
        formatter.setMaximumFractionDigits(2);
    }//from ww w  . j  a  va  2 s  . c o m

    return result;
}

From source file:Main.java

public static String formatByte(long l) {
    String s = "0 KB";
    if (l <= 0x100000L) {
        BigDecimal bigdecimal = new BigDecimal(l);
        BigDecimal bigdecimal1 = new BigDecimal(1024);
        RoundingMode roundingmode = RoundingMode.CEILING;
        String s1 = String.valueOf(bigdecimal.divide(bigdecimal1, 0, roundingmode).toString());
        s = (new StringBuilder(s1)).append(" KB").toString();
    } else {//from w  w w .  jav  a2s  .  c  o m
        if (l >= 0x40000000L) {
            BigDecimal bigdecimal2 = new BigDecimal(l);
            BigDecimal bigdecimal3 = new BigDecimal(0x40000000);
            RoundingMode roundingmode1 = RoundingMode.CEILING;
            String s2 = String.valueOf(bigdecimal2.divide(bigdecimal3, 2, roundingmode1).toString());
            s = (new StringBuilder(s2)).append(" G").toString();
        } else {
            BigDecimal bigdecimal4 = new BigDecimal(l);
            BigDecimal bigdecimal5 = new BigDecimal(0x100000);
            RoundingMode roundingmode2 = RoundingMode.CEILING;
            String s3 = String.valueOf(bigdecimal4.divide(bigdecimal5, 2, roundingmode2).toString());
            s = (new StringBuilder(s3)).append(" MB").toString();
        }
    }
    return s;
}

From source file:Main.java

public static final double round(double v, int scale) {
    if (scale < 0) {
        throw new IllegalArgumentException("The scale must be a positive integer or zero");
    }/*w  w w .j  av  a  2s.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 div(double v1, double v2, int scale) {
    if (scale < 0) {
        throw new IllegalArgumentException("The scale must be a positive integer or zero");
    }/*from w  w w.  ja  va  2  s.c om*/
    BigDecimal b1 = new BigDecimal(Double.toString(v1));
    BigDecimal b2 = new BigDecimal(Double.toString(v2));
    return b1.divide(b2, scale, BigDecimal.ROUND_HALF_UP).doubleValue();
}

From source file:Main.java

public static double round(double paramDouble, int paramInt) {
    if (paramInt < 0) {
        throw new IllegalArgumentException("The   scale   must   be   a   positive   integer   or   zero");
    }//  w w w .  java 2  s.c  o m
    return new BigDecimal(Double.toString(paramDouble)).divide(new BigDecimal("1"), paramInt, 5).doubleValue();
}

From source file:Main.java

public static double[] round2(double[] doubleRes) {
    double[] result = new double[doubleRes.length];
    for (int i = 0; i < doubleRes.length; i++) {
        BigDecimal bg = new BigDecimal(doubleRes[i]);
        result[i] = bg.setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue();
    }//from  w ww  . j  a  v  a  2  s.c  o  m
    return result;
}

From source file:Main.java

protected static final String encodingUTF8andChange(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();
    return new BigDecimal(str).setScale(2, BigDecimal.ROUND_HALF_UP).toString();
}