工具一
/**
* @author BNTang
* @version 1.0
* @date 2022年6月13日09:34:05
**/
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, RoundingMode.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, RoundingMode.HALF_UP);
}
/**
* 比较v1 v2大小
*
* @param v1 v1
* @param v2 v2
* @return int(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);
}
}