Web29 ott 2013 · You need to use the doubleValue () method to get the double value from a BigDecimal object. BigDecimal bd; // the value you get double d = bd.doubleValue (); // … Web14 apr 2024 · JAVA - 保留多少位小数的方法 方法一 bigDecimal.setScale() Java在java.math包中提供的API类BigDecimal,用来对超过16位有效位的数进行精确的运算。 …
BigDecimal (Java Platform SE 8) - Oracle
WebHow to convert double to BigDecimal in Java. In Java, with a given double value we can use the BigDecimal.valueOf (double val) static method to instantiate a new BigDecimal … Web12 mar 2024 · 使用Java BigDecimal类可以保留两位小数。可以使用setScale()方法设置小数位数,例如: BigDecimal bd = new BigDecimal("123.456"); bd = bd.setScale(2, BigDecimal.ROUND_HALF_UP); System.out.println(bd); 这将输出123.46,其中setScale()方法的第一个参数是要保留的小数位数,第二个参数是舍入模式。 br usembassy
java.math.bigdecimal - CSDN文库
Translates a double into a BigDecimal which is the exact decimal representation of the double's binary floating-point value.The scale of the returned BigDecimal is the smallest value such that (10 scale × val) is an integer. Notes: The results of this constructor can be somewhat unpredictable. One might assume that writing new BigDecimal(0.1) in Java creates a BigDecimal which is exactly ... Web18 set 2024 · Java在java.math包中提供的API类BigDecimal,用来对超过16位有效位的数进行精确的运算。. 双精度浮点型变量double可以处理16位有效数,但在实际应用中,可能需要对更大或者更小的数进行运算和处理。. 一般情况下,对于那些不需要准确计算精度的数字,我们可以直接 ... Web4 dic 2024 · BigDecimal Class in Java. The BigDecimal class provides operations on double numbers for arithmetic, scale handling, rounding, comparison, format conversion … brusel charleroi