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...
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...
* @param num - The number to round * @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 % near...
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,使用ROUND_HALF_UP ,如果是偶数,使用ROUND_HALF_DOWN static int ROUND_HALF_UP...
select round(request_timestamp, '5') as window, --round timestamp to the nearest 5 minute cdn, isp, http_result_code, transaction_time, sum(bytes_transferred) from web_records group by round(request_timestamp, '5'), cdn, isp, http_result_code, transaction_time 在java 8中,我当前的第...
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 ...
In this quick tutorial, we’ll illustrate how toround up a given number to the nearest hundred. For example: 99becomes100 200.2becomes300 400becomes400 2. Implementation First, we’re going to callMath.ceil()on the input parameter.Math.ceil()returns the smallest integer that is greater than...
Rounding mode to round towards the "nearest neighbor" unless both neighbors are equidistant, in which case, round towards the even neighbor. RoundHalfUp Rounding mode to round towards "nearest neighbor" unless both neighbors are equidistant, in which case round up. RoundUnnecessary Rounding mode...
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 ...
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...