package com.whyc.util;
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import java.math.BigDecimal;
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import java.math.RoundingMode;
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/**
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* 计算工具类
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*/
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public class MathUtil {
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/**
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* 提取公共方法,相除获取比例,返回可选String或者Float
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* @param type 1表示小数,2表示除去%的比例,3表示%的比例
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* @return Object String或者Float类型
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* */
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public static Object divide(Object num,Object num2,Integer type){
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float res = 0;
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double num2Double=Double.parseDouble(num2.toString());
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if(num2Double!=0){
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if (num instanceof Integer) {
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res = BigDecimal.valueOf((Integer) num).divide(BigDecimal.valueOf((Integer) num2), 2, RoundingMode.HALF_UP).floatValue();
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}
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if (num instanceof Float) {
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res = BigDecimal.valueOf((Float) num).divide(BigDecimal.valueOf((Float) num2), 2, RoundingMode.HALF_UP).floatValue();
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}
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if (num instanceof Double) {
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res = BigDecimal.valueOf((Double) num).divide(BigDecimal.valueOf((Double) num2), 2, RoundingMode.HALF_UP).floatValue();
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}
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}
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//0.05
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if (type == 1) {
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return res;
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}
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//5
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else if (type == 2) {
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return (int) (res * 100);
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}
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//5%
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return (int) (res * 100) + "%";
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}
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}
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