Java.math.MathContext.getRoundingMode()方法實例

java.math.MathContext.getRoundingMode() 返回RoundingMode的設置。

這會是以下幾個之一的值：RoundingMode.CEILING, RoundingMode.DOWN, RoundingMode.FLOOR, RoundingMode.HALF_DOWN, RoundingMode.HALF_EVEN, RoundingMode.HALF_UP, RoundingMode.UNNECESSARY, or RoundingMode.UP.

聲明

以下是java.math.MathContext.getRoundingMode()方法的聲明

public RoundingMode getRoundingMode()

參數

• NA

返回值

該方法返回一個RoundingMode對象，這是RoundingMode設置的值。

異常

• NA

例子

下面的例子顯示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 ); } }

讓我們編譯和運行上面的程序，這將產生以下結果：

Rounding Mode of mc1 is HALF_UP Rounding Mode of mc2 is CEILING