Java Math MathContext.toString() 方法 Java Math MathContext.hashCode() 方法 Java Math RoundingMode枚举 Java Math MathContext.toString() 方法 package com.codingdict; 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(6, RoundingMode.DOWN); mc2 = new MathContext(20, RoundingMode.FLOOR); // create 2 String objects String s1, s2; // assign string representation of mc1, mc2 to s1, s2 s1 = mc1.toString(); s2 = mc2.toString(); String str1 = "String representation of mc1 is " + s1; String str2 = "String representation of mc2 is " + s2; // print s1, s2 values System.out.println( str1 ); System.out.println( str2 ); } } Java Math MathContext.hashCode() 方法 Java Math RoundingMode枚举