%uA0java.math.MathContext.getRoundingMode()%uA0返回RoundingMode的设置。
这会是以下几个之一的值：RoundingMode.CEILING, RoundingMode.DOWN, RoundingMode.FLOOR, RoundingMode.HALF_DOWN, RoundingMode.HALF_EVEN, RoundingMode.HALF_UP, RoundingMode.UNNECESSARY, or RoundingMode.UP.
声明
以下是java.math.MathContext.getRoundingMode()方法的声明
public RoundingMode getRoundingMode()
参数
-
NA
返回值
该方法返回一个RoundingMode对象，这是RoundingMode设置的值。
异常
-
NA
例子
下面的例子显示math.MathContext.getRoundingMode()方法的用法
package com.yiibai import java.math.* public class MathContextDemo { public static void main(String[] args) { // create 2 MathContext objects MathContext mc1, mc2 // assign context settings to mc1, mc2 mc1 = new MathContext(4) mc2 = new MathContext(50, RoundingMode.CEILING) // create 2 RoundingMode objects RoundingMode rm1, rm2 // assign roundingmode of mc1, mc2 to rm1, rm2 rm1 = mc1.getRoundingMode() rm2 = mc2.getRoundingMode() String str1 = "Rounding Mode of mc1 is " + rm1 String str2 = "Rounding Mode of mc2 is " + rm2 // print rm1, rm2 values System.out.println( str1 ) System.out.println( str2 ) } }
让我们编译和运行上面的程序，这将产生以下结果：
Rounding Mode of mc1 is HALF_UP Rounding Mode of mc2 is CEILING