1 /**
2 * Created by My_coder on 2017-07-27.
3 * 加减乘除计算工具类
4 */
5 public class BigDecimalUtil {
6 private BigDecimalUtil() {
7 }
8
9 /**
10 * 加
11 */
12 public static BigDecimal add(Double v1, Double v2){
13 BigDecimal b1 = new BigDecimal(v1.toString());
14 BigDecimal b2 = new BigDecimal(v2.toString());
15 return b1.add(b2);
16 }
17 /**
18 * 减
19 */
20 public static BigDecimal sub(Double v1, Double v2){
21 BigDecimal b1 = new BigDecimal(v1.toString());
22 BigDecimal b2 = new BigDecimal(v2.toString());
23 return b1.subtract(b2);
24 }
25 /**
26 * 乘
27 */
28 public static BigDecimal mul(Double v1, Double v2){
29 BigDecimal b1 = new BigDecimal(v1.toString());
30 BigDecimal b2 = new BigDecimal(v2.toString());
31 return b1.multiply(b2);
32 }
33 /**
34 * 除
35 */
36 public static BigDecimal div(Double v1, Double v2){
37 BigDecimal b1 = new BigDecimal(v1.toString());
38 BigDecimal b2 = new BigDecimal(v2.toString());
39 //四舍五入，保留两位小数
40 return b1.divide(b2,2,BigDecimal.ROUND_HALF_DOWN);
41 }
42 }
