java.math.BigDecimal.toPlainString()方法的使用及代码示例

x33g5p2x  于2022-01-16 转载在 其他  
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本文整理了Java中java.math.BigDecimal.toPlainString()方法的一些代码示例，展示了BigDecimal.toPlainString()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。BigDecimal.toPlainString()方法的具体详情如下：
包路径：java.math.BigDecimal
类名称：BigDecimal
方法名：toPlainString

BigDecimal.toPlainString介绍

[英]Returns a string representation of this BigDecimal. No scientific notation is used. This methods adds zeros where necessary.

If this string representation is used to create a new instance, this instance is generally not identical to this as the precision changes.

x.equals(new BigDecimal(x.toPlainString()) usually returns false.

x.compareTo(new BigDecimal(x.toPlainString()) returns 0.
[中]返回此BigDecimal的字符串表示形式。没有使用科学符号。此方法在必要时添加零。
如果此字符串表示用于创建新实例，则随着精度的变化，此实例通常与此实例不同。
x、 equals（新的BigDecimal（x.toPlainString（））通常返回false。
x、 compareTo（新的BigDecimal（x.toPlainString（））返回0。

代码示例

代码示例来源：origin: jenkinsci/jenkins

/**
 * Gets GB left.
 */
public String getGbLeft() {
  long space = size;
  space/=1024L;   // convert to KB
  space/=1024L;   // convert to MB
  return new BigDecimal(space).scaleByPowerOfTen(-3).toPlainString();
}

代码示例来源：origin: redisson/redisson

@Override
public Double zIncrBy(byte[] key, double increment, byte[] value) {
  return write(key, DoubleCodec.INSTANCE, RedisCommands.ZINCRBY,
            key, new BigDecimal(increment).toPlainString(), value);
}

代码示例来源：origin: redisson/redisson

@Override
public Double zIncrBy(byte[] key, double increment, byte[] value) {
  return write(key, DoubleCodec.INSTANCE, RedisCommands.ZINCRBY,
            key, new BigDecimal(increment).toPlainString(), value);
}

代码示例来源：origin: redisson/redisson

@Override
public Double zIncrBy(byte[] key, double increment, byte[] value) {
  return write(key, DoubleCodec.INSTANCE, RedisCommands.ZINCRBY,
            key, new BigDecimal(increment).toPlainString(), value);
}

代码示例来源：origin: redisson/redisson

@Override
public Double zIncrBy(byte[] key, double increment, byte[] value) {
  return write(key, DoubleCodec.INSTANCE, RedisCommands.ZINCRBY,
            key, new BigDecimal(increment).toPlainString(), value);
}

代码示例来源：origin: stackoverflow.com

@FacesConverter("bigDecimalPlainDisplay")
public class BigDecimalDisplayConverter implements Converter {
  @Override
  public Object getAsObject(FacesContext context, UIComponent component, String value) {
    throw new BigDecimal(value);
  }

  @Override
  public String getAsString(FacesContext context, UIComponent component, Object value) {
    BigDecimal  bd = (BigDecimal)value;
    return bd.setScale(2, RoundingMode.HALF_UP).stripTrailingZeros().toPlainString();
  }
}

代码示例来源：origin: stackoverflow.com

static Double round(Double d, int precise)
{
  BigDecimal bigDecimal = new BigDecimal(d);
  System.out.println("Before round: " + bigDecimal.toPlainString());
  bigDecimal = bigDecimal.setScale(15, RoundingMode.HALF_UP);
  System.out.println("Hack round: " + bigDecimal.toPlainString());
  bigDecimal = bigDecimal.setScale(precise, RoundingMode.HALF_UP);
  System.out.println("After round: " + bigDecimal.toPlainString());
  return bigDecimal.doubleValue();
}

代码示例来源：origin: AdoptOpenJDK/jitwatch

private String millisToSecondsString(long millis)
{
  return new BigDecimal(Long.toString(millis)).divide(new BigDecimal("1000")).toPlainString();
}

代码示例来源：origin: AdoptOpenJDK/jitwatch

private String millisToSecondsString(long millis)
{
  return new BigDecimal(Long.toString(millis)).divide(new BigDecimal("1000")).toPlainString();
}

代码示例来源：origin: apache/kylin

public static String normalizeNumber(String v) {
  boolean badBegin = (v.startsWith("0") && v.length() > 1 && v.charAt(1) != '.') //
      || (v.startsWith("-0") && v.length() > 2 && v.charAt(2) != '.') //
      || v.startsWith("+");
  if (badBegin) {
    v = new BigDecimal(v).toPlainString();
  }
  
  while (v.contains(".") && (v.endsWith("0") || v.endsWith("."))) {
    v = v.substring(0, v.length() - 1);
  }
  
  return v;
}

代码示例来源：origin: alibaba/easyexcel

public static String formatFloat0(String value, int n) {
  if (null != value && value.contains(".")) {
    if (isNumeric(value)) {
      try {
        BigDecimal decimal = new BigDecimal(value);
        BigDecimal setScale = decimal.setScale(n, BigDecimal.ROUND_HALF_DOWN);
        return setScale.toPlainString();
      } catch (Exception e) {
      }
    }
  }
  return value;
}

代码示例来源：origin: alibaba/easyexcel

public static String formatFloat(String value) {
  if (null != value && value.contains(".")) {
    if (isNumeric(value)) {
      try {
        BigDecimal decimal = new BigDecimal(value);
        BigDecimal setScale = decimal.setScale(10, BigDecimal.ROUND_HALF_DOWN).stripTrailingZeros();
        return setScale.toPlainString();
      } catch (Exception e) {
      }
    }
  }
  return value;
}

代码示例来源：origin: stackoverflow.com

import java.math.BigDecimal;
import java.text.DecimalFormat;

public class Runner {
  public static void main(String[] args) {
    double myvalue = 0.00000021d;

    //Option 1 Print bare double.
    System.out.println(myvalue);

    //Option2, use decimalFormat.
    DecimalFormat df = new DecimalFormat("#");
    df.setMaximumFractionDigits(8);
    System.out.println(df.format(myvalue));

    //Option 3, use printf.
    System.out.printf("%.9f", myvalue);
    System.out.println();

    //Option 4, convert toBigDecimal and ask for toPlainString().
    System.out.println(new BigDecimal(myvalue).toPlainString());
    System.out.println();

    //Option 5, String.format 
    System.out.println(String.format("%.12f", myvalue));
  }
}

代码示例来源：origin: stackoverflow.com

BigDecimal d = new BigDecimal("600.0").setScale(2, RoundingMode.HALF_UP).stripTrailingZeros();
System.out.println(d.toPlainString()); // Printed 600 for me

代码示例来源：origin: smuyyh/BookReader

public static String getFormatSize(double size) {
  double kiloByte = size / 1024;
  if (kiloByte < 1) {
    return "0K";
  }
  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";
}

代码示例来源：origin: stackoverflow.com

public static void main (String[] args) throws java.lang.Exception
{
  System.out.println("Rounded: " + round(2.655d,2)); // -> 2.65
  System.out.println("Rounded: " + round(1.655d,2)); // -> 1.66
}

public static Double round(Double d, int precise)
{       
  BigDecimal bigDecimal = new BigDecimal(d);
  System.out.println("Before round: " + bigDecimal.toPlainString());
  bigDecimal = bigDecimal.setScale(precise, RoundingMode.HALF_UP);
  System.out.println("After round: " + bigDecimal.toPlainString());
  return bigDecimal.doubleValue();
}

代码示例来源：origin: redisson/redisson

@Override
public RFuture<Integer> addScoreAndGetRankAsync(V object, Number value) {
  return commandExecutor.evalWriteAsync(getName(), LongCodec.INSTANCE, RedisCommands.EVAL_INTEGER,
      "redis.call('zincrby', KEYS[1], ARGV[1], ARGV[2]); "
      +"return redis.call('zrank', KEYS[1], ARGV[2]); ",
      Collections.<Object>singletonList(getName()), new BigDecimal(value.toString()).toPlainString(), encode(object));
}

代码示例来源：origin: redisson/redisson

@Override
public RFuture<Integer> addScoreAndGetRevRankAsync(V object, Number value) {
  return commandExecutor.evalWriteAsync(getName(), LongCodec.INSTANCE, RedisCommands.EVAL_INTEGER,
      "redis.call('zincrby', KEYS[1], ARGV[1], ARGV[2]); "
      +"return redis.call('zrevrank', KEYS[1], ARGV[2]); ",
      Collections.<Object>singletonList(getName()), new BigDecimal(value.toString()).toPlainString(), encode(object));
}

代码示例来源：origin: redisson/redisson

@Override
public RFuture<Integer> addScoreAndGetRankAsync(V object, Number value) {
  return commandExecutor.evalWriteAsync(getName(), LongCodec.INSTANCE, RedisCommands.EVAL_INTEGER,
      "redis.call('zincrby', KEYS[1], ARGV[1], ARGV[2]); "
      +"return redis.call('zrank', KEYS[1], ARGV[2]); ",
      Collections.<Object>singletonList(getName()), new BigDecimal(value.toString()).toPlainString(), encode(object));
}

代码示例来源：origin: redisson/redisson

@Override
public RFuture<Integer> addScoreAndGetRevRankAsync(V object, Number value) {
  return commandExecutor.evalWriteAsync(getName(), LongCodec.INSTANCE, RedisCommands.EVAL_INTEGER,
      "redis.call('zincrby', KEYS[1], ARGV[1], ARGV[2]); "
      +"return redis.call('zrevrank', KEYS[1], ARGV[2]); ",
      Collections.<Object>singletonList(getName()), new BigDecimal(value.toString()).toPlainString(), encode(object));
}

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