BigDecimal数字计算工具类

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import java.math.BigDecimal;   /**  * @Author  * @Date 2022/4/17  * @Version 1.0  **/ public class BigDecimalUtils {     public static BigDecimal doubleAdd(double v1, double v2) {         BigDecimal b1 = new BigDecimal(Double.toString(v1));         BigDecimal b2 = new BigDecimal(Double.toString(v2));         return b1.add(b2);     }     public static BigDecimal floatAdd(float v1, float v2) {         BigDecimal b1 = new BigDecimal(Float.toString(v1));         BigDecimal b2 = new BigDecimal(Float.toString(v2));         return b1.add(b2);     }     public static BigDecimal doubleSub(double v1, double v2) {         BigDecimal b1 = new BigDecimal(Double.toString(v1));         BigDecimal b2 = new BigDecimal(Double.toString(v2));         return b1.subtract(b2);     }     public static BigDecimal floatSub(float v1, float v2) {         BigDecimal b1 = new BigDecimal(Float.toString(v1));         BigDecimal b2 = new BigDecimal(Float.toString(v2));         return b1.subtract(b2);     }       public static BigDecimal doubleMul(double v1, double v2) {         BigDecimal b1 = new BigDecimal(Double.toString(v1));         BigDecimal b2 = new BigDecimal(Double.toString(v2));         return b1.multiply(b2);     }     public static BigDecimal floatMul(float v1, float v2) {         BigDecimal b1 = new BigDecimal(Float.toString(v1));         BigDecimal b2 = new BigDecimal(Float.toString(v2));         return b1.multiply(b2);     }       public static BigDecimal doubleDiv(double v1, double v2) {         BigDecimal b1 = new BigDecimal(Double.toString(v1));         BigDecimal b2 = new BigDecimal(Double.toString(v2));         // 保留小数点后两位 ROUND_HALF_UP = 四舍五入         return b1.divide(b2, 2, BigDecimal.ROUND_HALF_UP);     }     public static BigDecimal floatDiv(float v1, float v2) {         BigDecimal b1 = new BigDecimal(Float.toString(v1));         BigDecimal b2 = new BigDecimal(Float.toString(v2));         // 保留小数点后两位 ROUND_HALF_UP = 四舍五入         return b1.divide(b2, 2, BigDecimal.ROUND_HALF_UP);     }     /**      * 比较v1 v2大小      * @param v1      * @param v2      * @return v1>v2 return 1  v1=v2 return 0 v1<v2 return -1      */     public static int doubleCompareTo(double v1, double v2) {         BigDecimal b1 = new BigDecimal(Double.toString(v1));         BigDecimal b2 = new BigDecimal(Double.toString(v2));         return  b1.compareTo(b2);     }     public static int floatCompareTo(float v1, float v2) {         BigDecimal b1 = new BigDecimal(Float.toString(v1));         BigDecimal b2 = new BigDecimal(Float.toString(v2));         return  b1.compareTo(b2);     } }