Shulou(Shulou.com)06/02 Report--

This article introduces the relevant knowledge of "what are Sonar common problems". In the operation process of actual cases, many people will encounter such difficulties. Next, let Xiaobian lead you to learn how to deal with these situations! I hope you can read carefully and learn something!

1.Equality tests should not be made with floating point value

Code example: if (result == num) //result and num are both double, there will be precision loss between comparisons

BigDecimal data1 = new BigDecimal(totalArea);

BigDecimal data2 = new BigDecimal(s1);

int num = data1.compareTo(data2);//num =0 =>0 The former is greater than the latter, and vice versa

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.