I have an enum and I tried to internationalize it like:

public enum ActivityEnum {
PROJECT_CREATED, PROJECT_EDITED, PROJECT_DONATION;

@Override
public String toString() {
    switch (this) {
    case PROJECT_CREATED:
        return Messages.get("activity.project.created");
    case PROJECT_EDITED:
        return Messages.get("activity.project.edited");
    case PROJECT_DONATION:
        return Messages.get("activity.project.donation");
        default: return super.toString();
    }
}

private ActivityEnum activityEnum;

public ActivityEnum getActivityEnum() {
    return activityEnum;
}

public void setActivityEnum(ActivityEnum activityEnum) {
    this.activityEnum = activityEnum;
}

}

Now, please note that the keys defined in my messages.properties contains string formatters like:

activity.project.created = User <%s> created project <%s>

Well, the issue is that when I do something with this enum in other places in the code, it throws an exception like:

MissingFormatArgumentException occured : Format specifier 's'

so basically it wants that when I get the key in toString enum class, to apply also the args for formatting but this I only do later where I use that enum...

activity.summary = String.format(activityEnum.toString(), args);

Can you please give me a suggestion of how to handle this?

UPDATE:

If I use the classic way, all works nice:

PROJECT_CREATED("User <%s> created project <%s>"), PROJECT_EDITED(
        "User <%s> edited project <%s>"), PROJECT_DONATION(
        "User <%s> made a donation of <%d> to project <%s>");

but this is without internationalization.

• java

• pass the key in the constructor and store it in a member field

• write a method like:

  public String toDisplayString(String... args){ ... }

• get rid of the switch statement