Can float (or double) be set to NaN?
22,698
Solution 1
The Float object contains a static value, which is a float
type, called NaN
.
So
float myFloat = Float.NaN;
gives you what you are asking.
http://download.oracle.com/javase/6/docs/api/java/lang/Float.html#NaN
Solution 2
Sure! NaN is a static constant in the Float and Double classes.
double x = Double.NaN;
Solution 3
Yes
float f = Float.NaN;
See the doc for more info. Note that if you want to compare a number to NaN, you should use isNan().
Despite your question above, this does have a practical purpose. You can use this to indicate a value hasn't been set/provided yet.
Author by
ahodder
I'm a derp who derps with herps in hopes that the herp does all the derping I want it to.
Updated on May 12, 2020Comments
-
ahodder almost 4 years
Note: Similar to Can an integer be NaN in C++?
I understand this has little practical purpose, but can a
float
ordouble
be set toNaN
?