import java.math.*; public class 高精度运算 { BigDecimal b1,b2; //加法运算 public BigDecimal add(double value1,double value2){ b1 = new BigDecimal(Double.toString(value1)); b2 = new BigDecimal(Double.to

一般情况下可以在实例化DecimalFormat对象时传递数字格式,也可以通过DecimalForma

常用数学运算方法 三角函数

import java.math.*; public class 大整数的加减乘除 { public static void main(String[] args) { BigInteger b = new BigInteger("4"); BigInteger b2 = new BigInteger("2"); BigInteger b3 = new BigInteger("3")

public class 产生随机数{ public static int GetEvenNum(double num1,double num2){ int s = (int)num1 +(int)(Math.random() * (num2 - num1)); if (s %2 ==0){ System.out.println("随机数：" + s); return s;