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...
* @param nearest - The nearest number to round to (If the nearest is 5 -> (0 - 2.49 will round down) || (2.5-4.99 will round up)) * @return Double - The rounded number */ private Double round (double num, int nearest) { if (num % nearest >= nearest / 2) { num = num ...
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。 System.out.println(new java.text.Decima...
The round() method rounds a number to the nearest integer.SyntaxOne of the following:public static long round(double number)public static int round(float number)Parameter ValuesParameterDescription number Required. A number to round.Technical Details...
向负无穷方向舍入ROUND_HALF_DOWNRounding mode to round towards"nearest neighbor"unless both neighbors are equidistant,inwhichcaseround 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_EVENRounding mode to round towards the"nearest ...
static int ROUND_HALF_EVEN Rounding mode to round towards the "nearest neighbor" unless both neighbors are equidistant, in which case, round towards the even neighbor. 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, ...
BigDecimal(int)//创建一个具有参数所指定整数值的对象。BigDecimal(double)//创建一个具有参数所指定双精度值的对象。 //不推荐使用BigDecimal(long)//创建一个具有参数所指定长整数值的对象。BigDecimal(String)//创建一个具有参数所指定以字符串表示的数值的对象。//推荐使用 ...
java.awt.BasicStroke public static final int CAP_BUTT 0 public static final int CAP_ROUND 1 public static final int CAP_SQUARE 2 public static final int JOIN_BEVEL 2 public static final int JOIN_MITER 0 public static final int JOIN_ROUND 1...
Returns the closest long to the argument, with ties rounding to positive infinity. Round(Single) Returns the closest int to the argument, with ties rounding to positive infinity. Round(Double) Returns the closest long to the argument, with ties rounding to positive infinity. C# Copy [Andro...
[Android.Runtime.Register("round", "(D)J", "")] public static long Round (double a); Parameters a Double a floating-point value to be rounded to along. Returns Int64 the value of the argument rounded to the nearestlongvalue.