Java Math Floor Vs Int Cast

With a method like truncatesafely we can combine math ceil and math floor to avoid problems with casting to int.

Java math floor vs int cast.

Towards the lesser value. By the way you must remember that type casting just get rid of anything after the decimal point they don t perform any rounding or flooring. It is the value which is to be tested for math floor. The java lang math floor double a returns the largest closest to positive infinity double value that is less than or equal to the argument and is equal to a mathematical integer.

Cast to an int. The java lang math floor is used to find the largest integer value which is less than or equal to the argument and is equal to the mathematical integer of a double value. Note that as a practical matter you may need to cast the math round result to an int like this. The math floor method is used to round off the number passed as a parameter to its nearest integer in downward direction of rounding i e.

This method accepts single parameter asmentioned above and described below. If the argument value is already equal to a mathematical integer then the result is the same as the argument. Java floor method the method floor gives the largest integer that is less than or equal to the argument. Since a float is a bigger than int you can convert a float to an int by simply down casting it e g.

For important numeric applications i would use math floor math round or math ceil. For cases where a simple truncation of a small value is needed an int cast is sufficient. Int 4 0f will give you integer 4. If the argument is nan or an infinity or positive zero or negative zero.