Selecting a random value from an enum

[Steven Davies]

Hi,

Say I have the following declaration:

enum Days {
MONDAY,
TUESDAY,
WEDNESDAY,
THURSDAY,
FRIDAY;
}

Is there any way I can get a random value out of it without using a for
loop of random size?

Thanks,

Steven Davies

 

[John C. Bollinger]

Say I have the following declaration:

enum Days {
MONDAY,
TUESDAY,
WEDNESDAY,
THURSDAY,
FRIDAY;
}

Is there any way I can get a random value out of it without using a for
loop of random size?

From reading the typesafe enum docs, I would expect that something
similar to this would work:

public Days randomDay() {
Days[] days = Days.values();

return days[(int) (Math.random() * days.length)];
}

I have not tested it, however.


John Bollinger
(e-mail address removed)