Static members of an non-static inner class

[Ricardo Trindade]

Hello,

I would like an explanation. In the code below, why does the "a" field not generate an error and the "obj" field does?

public class OuterClass {
    class InnerClass{
       static final int a = 0;
       static final OuterClass obj = null;
    }
}

Tks...

[vinuharan haran]

Inner class can have static field if they are compile time constants.
In your code,
a is assigned to a compile time constant.
while obj is not.
u can refer the following link to get an idea about constant expressions.
JLS 15.28

[Ricardo Trindade]

Tks for the answer.