当double必须用作BigDecimal的源时,请使用Double.toString(double)转成String,然后使用String构造方法,或使用BigDecimal的静态方法valueOf @Test public voidtest3(){BigDecimal test1=newBigDecimal(Double.toString(1.11));BigDecimal test2=Bi
不足补0 * 整数部分如果位数大于需要的位数按实际位数输出 * 小数部分如果大于需要的位数四舍五入 * * @param num * @param integerDigit 整数部分位数 * @param fractionDigit 小数部分位数 * @return */ public static String add0Format(double num, int integerDigit, int fractionDigit) { StringBuilder r...
This representation hazard of decimal fractions is one reason to use caution when storing monetary values as float or double. Alternatives include: using BigDecimal to store decimal fractional values exactly scaling up so the monetary value is an integer — for example, multiplying by 100 if the...
Translates a double into a BigDecimal, using the double's canonical string representation provided by the Double#toString(double) method. ValueOf(Int64, Int32) Translates a long unscaled value and an int scale into a BigDecimal. ValueOf(Int64) Translates a long value into a BigDecimal with ...
publicclassNumberFormatExample{publicstaticvoidmain(String[]args){doublenumber=1000000.12345;StringformattedNumber=addCommas(number);System.out.println(formattedNumber);}publicstaticStringaddCommas(doublenumber){String[]parts=String.valueOf(number).split("\\.");StringwholeNumberPart=parts[0];StringdecimalPar...
public static BigDecimal valueOf(double val) Translates a double into a BigDecimal, using the double's canonical string representation provided by the Double.toString(double) method. Note: This is generally the preferred way to convert a double (or float) into a BigDecimal, as the value return...
For a canonical representation of the value, use Float#toString(float) or Double#toString(double) as appropriate. 'a' '\u0061' Requires the output to be formatted in hexadecimal exponential form. No localization is applied. The result is a string that represents the sign and magnitude ...
public void whenBigDecimalCreatedFromDouble_thenValueMayNotMatch() { BigDecimal bdFromDouble = new BigDecimal(0.1d); assertNotEquals("0.1", bdFromDouble.toString()); } In this case, we might not get the result we expect because0.1cannot be represented exactly as a double. To avoid this issu...
();doubleinterestRate = asset.getInterestRate();DateissueDate = asset.getIssueDate();BigDecimalresult =newBigDecimal(rawQuantity.toString());//System.out.println("interest rate = " + interestRate);//System.out.println("issue date = " + issueDate);//System.out.println("raw units =" + ...
Try this example: ? 1 2 3 4 5 6 7 double doubleValue = 999999999999999.999; BigDecimal bigDecimalValue = new BigDecimal("999999999999999.999"); DecimalFormat formatter = new DecimalFormat("0.0##"); System.out.println( "double value: " + formatter.format(doubleValue) ); System.out.println...