BigDecimal的运用

//加法
BigDecimal result1 = num1.add(num2);
BigDecimal result12 = num12.add(num22);
 
//减法
BigDecimal result2 = num1.subtract(num2);
BigDecimal result22 = num12.subtract(num22);
 
//乘法
BigDecimal result3 = num1.multiply(num2);
BigDecimal result32 = num12.multiply(num22);
 
//绝对值
BigDecimal result4 = num3.abs();
BigDecimal result42 = num32.abs();
 
        //除法
BigDecimal result5 = num2.divide(num1,,BigDecimal.ROUND_HALF_UP);
BigDecimal result52 = num22.divide(num12,,BigDecimal.ROUND_HALF_UP);

java

或者将 total初始化为0.00
BigDecimal total=BigDecimal.ZERO;
for (int i = ; i < ; i++) {
    BigDecimal number= new BigDecimal();
    total= total.add(number) ;
}
System.out.println(total);