How can I refer to an enum variable from a static context?
if(array[3][3].getCall() == false && array[3][3].getUser() == Car.user.NONE )
{
array[3][3] = new Car('s', Car.user.USER, false);
aCounter++;
System.out.println("everything is fine");
}
this bit of code gives me: error: non-static variable user cannot refer to static context.
public class Car
{
public enum User { USER, COMP, NA };
private char object;
public User user;
private boolean call;
public Car(char object, User user, boolean call)
{
this.object = object;
this.user = user;
this.call = call;
}
}
The Enum is public because otherwise I get "custom access errors". I know that an enum is a non-static variable declared inside a constructor, so I think there is an error here, but I don't know how to fix it.
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The problem has nothing to do with enum variables and everything to do with static fields and classes versus non-static fields and classes. Please note that when you write
Car.user.NONE
Car.user
refers to a named field user
in the class Car
, but Car.user
is an instance variable, not static. Hence the error:
non-static variable user cannot be referenced from a static context
To fix this, just change Car.user
to Car.user
so that the expression refers to the field enum User
and not User user
.
if(array[3][3].getCall() == false && array[3][3].getUser() == Car.User.NONE )
{
array[3][3] = new Car('s', Car.User.USER, false);
aCounter++;
System.out.println("everything is fine");
}
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