The ceil() method rounds a number UP to the nearest integer.Tip: To round a number DOWN to the nearest integer, look at the floor() method.Tip: To round a number to the nearest integer in either direction, look at the round() method....
System.out.println("3.5 round to 5:" + Round.round(3.5, 5)); System.out.println("12 round to 6:" + Round.round(12, 6)); System.out.println("11 round to 7:"+ Round.round(11, 7)); System.out.println("5 round to 2:" + Round.round(5, 2)); System.out.println("6.2 roun...
3. Testing Let’s test the implementation: @Test public void givenInput_whenRound_thenRoundUpToTheNearestHundred() { assertEquals("Rounded up to hundred", 100, RoundUpToHundred.round(99)); assertEquals("Rounded up to three hundred ", 300, RoundUpToHundred.round(200.2)); assertEquals("Returns ...
如果保留位数是奇数,使用ROUND_HALF_UP,如果是偶数,使用ROUND_HALF_DOWNROUND_HALF_UPRounding mode to round towards"nearest neighbor"unless both neighbors are equidistant,inwhichcaseround up.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,向上舍入,1.55保留一位小数结果为1.6ROUND_UNNECESSARY...
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。
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 ...
Rounding mode to round towards"nearest neighbor" unless both neighbors are equidistant, in whichcaseround up. 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,向上舍入,1.55保留一位小数结果为1.6ROUND_UNNECESSARY Rounding mode toassertthat the requested operation has an exact result, hence ...
Rounding mode to round towards "nearest neighbor" unless both neighbors are equidistant, in which case round up. C# 複製 [Android.Runtime.Register("ROUND_HALF_UP")] public const Java.Math.RoundOptions RoundHalfUp = 4; Field Value Value = 4 RoundOptions Attributes RegisterAttribute ...
public static final int ROUND_DOWN 1 public static final int ROUND_FLOOR 3 public static final int ROUND_HALF_DOWN 5 public static final int ROUND_HALF_EVEN 6 public static final int ROUND_HALF_UP 4 public static final int ROUND_UNNECESSARY 7 public static final int ROUND_UP 0java.net.*...
UP –rounds away from zero DOWN –rounds towards zero HALF_UP –rounds towards “nearest neighbor” unless both neighbors are equidistant, in which case rounds up HALF_DOWN –rounds towards “nearest neighbor” unless both neighbors are equidistant, in which case rounds down ...