向负无穷方向舍入 ROUND_HALF_DOWN Rounding mode to round towards "nearest neighbor" unless both neighbors are equidistant, in which case round down. 向(距离)最近的一边舍入,除非两边(的距离)是相等,如果是这样,向下舍入, 例如1.55 保留一位小数结果为1.5 ROUND_HALF_EVEN Rounding mode to round towards...
Round to nearest, ties away from zero:就近舍入。偏向远离0,即四舍五入。 Directed roundings 定向舍入 Round toward 0:朝向0舍入 Round toward +∞:朝向+∞舍入 Round toward −∞:朝向-∞舍入而在Java 中,默认舍入模式为 RoundingMode.HALF_EVEN,即 "Round to nearest, ties to even" 该舍入模式...
Rounding mode to round towards "nearest neighbor" unless both neighbors are equidistant, in which case round down. 向(距离)最近的一边舍入,除非两边(的距离)是相等,如果是这样,向下舍入, 例如1.55 保留一位小数结果为1.5 ROUND_HALF_EVEN Rounding mode to round towards the "nearest neighbor" unless bo...
6. Math.round() Method Another way of rounding numbers is to use theMath.Round()Method. In this case, we can controlnnumber of decimal places by multiplying and dividing by10^n: public static double roundAvoid(double value, int places) { double scale = Math.pow(10, places); return Ma...
ROUND_HALF_DOWN Rounding mode to round towards"nearest neighbor" unless both neighbors are equidistant, in whichcaseround down. 向(距离)最近的一边舍入,除非两边(的距离)是相等,如果是这样,向下舍入, 例如1.55 保留一位小数结果为1.5ROUND_HALF_EVEN ...
BigDecimal.RoundUnnecessary Field Reference Feedback Definition Namespace: Java.Math Assembly: Mono.Android.dll Rounding mode to assert that the requested operation has an exact result, hence no rounding is necessary. C# [Android.Runtime.Register("ROUND_UNNECESSARY")]publicconstJava.Math.RoundOptions ...
static long round(double input) { long i = (long) Math.ceil(input); return ((i + 99) / 100) * 100; }; 3. Testing Let’s test the implementation: @Test public void givenInput_whenRound_thenRoundUpToTheNearestHundred() { assertEquals("Rounded up to hundred", 100, RoundUpToHundred....
Returns the Class object corresponding to this enum constant's enum type. (Inherited from Enum) Down Rounding mode where the values are rounded towards zero. Floor Rounding mode to round towards negative infinity. HalfDown Rounding mode where values are rounded towards the nearest neighbor. Half...
还有一种方式是使用java.text.DecimalFormat,但也存在问题,format采用的舍入模式是ROUND_HALF_DOWN(舍入模式在下面有介绍),比如说4.025保留两位小数会是4.02,因为.025距离”nearest neighbor”(.02和.03)长度是相等,向下舍入就是.02,如果是4.0251那么保留两位小数就是4.03。
mode rounds towards the “nearest neighbor” unless both neighbors are equidistant, in which case, round towards the even neighbor. It is sometimes known as “Banker’s rounding” and is mainly used in the USA. This mode corresponds to theIEEE 754-2019rounding-direction attributeroundTiesToEven....