"static synchronized" always required?

Question

let's say i am writing a Class . and i want this Class to be bullet-proof.
one that will never cause users of the Class to fail.
would not i be required to define all static methods as synchronized ?
consider this method:
public static void smoothData(Map<Date, Float> data) {
}i can have an object happily using this method. then, another object starts using the
same method. at some point in the future, if the timing is just wrong, is not there a chance that
both unfortunate invokers of that method blow-up?
synchronizing instance methods are certainly different. create that object, and its yours to
manage. but static methods break encapsulation .
i, clearly, am just getting started with programming.
so, please be patient.

Answer 1

kappa9h wrote:
let's say i am writing a Class . and i want this Class to be bullet-proof.That's a tall order! ;-)
one that will never cause users of the Class to fail.
would not i be required to define all static methods as synchronized ?
consider this method:of course not
>
public static void smoothData(Map<Date, Float> data) {
}i can have an object happily using this method. then, another object starts using the
same method. at some point in the future, if the timing is just wrong, is not there a chance that
both unfortunate invokers of that method blow-up?may not blow up, but you could certainly get dirty/phantom reads depending on what you're doing. but a static method might just get the time of day or something and doesn't need to be synchronized...