BigDecimal Error

Question

In Java, I have defined k as double k=0.0;

I am taking data from database and adding the same using while loop,

while(rst.         


        

Answer 1

As to your second question, double is a binary floating point number. This means that it is expressed as a sum of powers of two. Don't ever use those for calculating monetary values. (if that's what you're summing up there). BigDecimal uses decimal arithmetic, so this is more in line to what we use.

Numbers such as 0.1 are infinite fractions in binary, in this case: 0.000110011... thus you cannot get a reliable and exact result from using double.