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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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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//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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