How can I write math operation in java it always gave me error

Question

Which class or method should I use

Answer 1

Learn about Math package in Java. And please don't tag JavaScript if it is related to Java because both are different.

Answer 2

Please show us your code.

You can use + - * / %
Other operstions are in the Math class.

https://www.sololearn.com/learn/Java/2140/
https://www.sololearn.com/learn/Java/2219/?ref=app