public class Rounding { public static void main(String[] args) { double number = 3.14159; double roundedNumber = roundToNearest(number, 0.05); System.out.println("原始数字: " + number); System.out.println("舍入后的数字: " + roundedNumber); } public static double roundToNearest(double va...
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,如果保留位数是奇数,使用ROUND_HALF_UP,如果是偶数,使用ROUND_HALF_DOWN static int Rounding mode to round towards "nearest neighbor" unless both neighbors are equidistant, in which case round up. 向(距离)最近的一边舍入,除非两边(的距离)是...
Ceiling 2 Rounding mode to round towards positive infinity. Floor 3 Rounding mode to round towards negative infinity. HalfUp 4 Rounding mode where values are rounded towards the nearest neighbor. Ties are broken by rounding up. HalfDown 5 Rounding mode where values are rounded towards the nearest...
问将Java BigDecimal舍入到最接近的区间EN/** * Checks whether price needs rounding to the ne...
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 ...
difference差 multiply / times乘 product积 divide除 dividend被除数 quotient商 remainder余数 整除 divisible可被整除的 divided evenly被整除 divisor因子,除数 其他 factorial阶乘 power乘方 round to / to the nearest四舍五入 2. 有关集合 运算 union并集 ...
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....
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。
public static final intTYPE_NEAREST_NEIGHBOR 1 java.awt.image.BufferedImage Modifier and TypeConstant FieldValue public static final intTYPE_3BYTE_BGR 5 public static final intTYPE_4BYTE_ABGR 6 public static final intTYPE_4BYTE_ABGR_PRE 7 public static final intTYPE_BYTE_BINARY 12 public sta...
The value 10, with a scale of 0. Since: 1.5 ROUND_UP @Deprecated(since="9") public static final int ROUND_UP Deprecated. Use RoundingMode.UP instead. Rounding mode to round away from zero. Always increments the digit prior to a nonzero discarded fraction. Note that this rounding mode ne...