Example usage for java.math BigDecimal ROUND_HALF_UP

List of usage examples for java.math BigDecimal ROUND_HALF_UP

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Introduction

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

Prototype

int ROUND_HALF_UP

To view the source code for java.math BigDecimal ROUND_HALF_UP.

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Document

Rounding mode to round towards "nearest neighbor" unless both neighbors are equidistant, in which case round up.

Usage

From source file:Main.java

public static double divAddGoods(String value1, String value2) {
    if ("0.".equals(value2)) {
        value2 = "1";
    }//from www .j  a  v a 2  s.co  m

    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 Double round(Double d, int scale) {
    if (d == null) {
        return null;
    }// w  w w.j  a v  a2  s  . co m
    return BigDecimal.valueOf(d).setScale(scale, BigDecimal.ROUND_HALF_UP).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");

    }//from  w  ww.  j  a v a 2s  .c  o m

    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 w ww  .ja  va 2  s .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:Main.java

public static String getFormatSize(double size) {
    if (0 == size) {
        return "0K";
    }//  w  ww .j a va 2s.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";
}

From source file:Main.java

private static String getFormatSize(double size) {
    double kiloByte = size / 1024;
    if (kiloByte < 1) {
        return size + "Byte";
    }//from   www . j  ava2s . 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";
    }//from   w w w .j  a  v  a2  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 getFormatSize(double size) {
    double kiloByte = size / 1024;
    if (kiloByte < 1) {
        return size + "Byte(s)";
    }/* w w  w  .ja v a  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:Main.java

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

    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

/**
 * /*from www . j  a  v  a 2  s  .  co m*/
 * <p>
 * newScale scale of the result returned. (1)
 * <p>
 * roundingMode rounding mode to be used to round the result.(ROUND_HALF_UP)
 * 
 * @param value
 * @return BigDecimal
 */
public static BigDecimal convertAccuracy(Float value) {

    final String tmp;
    if (value == null) {
        tmp = new String("0");
    } else {
        tmp = String.valueOf(value);
    }
    return new BigDecimal(tmp).setScale(1, BigDecimal.ROUND_HALF_UP);

}