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

I assume rst is a ResultSet. Make sure you are using getBigDecimal rather than Double.parseDouble(rst.getString(5)):

BigDecimal k = BigDecimal.ZERO;
while(rst.next()) {
  k = k.add(rst.getBigDecimal(5));
}

And first of all: why aren't you adding these numbers in the database directly using appropriate SQL SUM query?