package com.mokamrp;

import org.junit.Test;

import java.math.BigDecimal;
import java.math.RoundingMode;
import java.text.NumberFormat;

public class Tests {

    private static String formatDouble(double d) {
        NumberFormat nf = NumberFormat.getInstance();
        //设置保留多少位小数
        nf.setMaximumFractionDigits(5);
        // 取消科学计数法
        nf.setGroupingUsed(false);
        //返回结果
        return nf.format(d);
    }
    @Test
    public void test(){
        System.out.println(BigDecimal.valueOf(1f/10000).setScale(5, RoundingMode.HALF_EVEN));
    }
}