Static final

Question

I need to share several objects among all instances, so I mark them as static. As far as these variables should be initialized only once they must be final as well. The problem is that I can't use static initializer, because these final static objects are constructed by 2nd class.
class Y {
     private static final var1;
     private static final var2;
     Y() {}
     static void useVars() { ... }
     void useVars() { ... }
class Main {
     public static void main(String[] args) {
          v1 = getVar1();
          v2 = getVar2();
          initClassY(v1, v2); // initializing static final vars for Y
}

Answer 1

You can use blank finals. This allows one to declare
a final without initializing it.This is correct.
The catch is you must initialize it before you use it.This is true, but not exact.
Actually, you must initialize it in the constructor
The following will not compile :
public MyClass{
   final int BLANK_FINAL;
   public MyClass(int arg1){
      setBF(arg1);
   private void setBF(int arg1){
      BLANK_FINAL = arg1 * 200 + 86; //compiler error