Shadowing final variables

In Java, final variables can be shadowed. They follow the same rules of shadow variables and static methods which I had discussed in my earlier post. The key point to remember is that while resolving a shadow variable or shadow static method, the reference type and NOT the reference object (i.e. object pointed to by the reference type) is used. Here is a simple example:

class Super {
   public final String y = "SUPER";
   public static final int z = 0;
}

class Sub extends Super {
  
   //Shadowing a final variable
   public final String y = "SUB";
  
   //Shadowing a final variable and also changing type and access modifier's
   char z = '1';

}

public class ShadowingFinalVariables {


   public static void main(String[] args) {
       Sub sub = new Sub();
       Super supr = sub;
      

       print(sub.y); //yields SUB
       print(supr.y);    //yields SUPER
       print(((Super)sub).y); //Due to casting, yields SUPER
       print(((Sub)supr).y); //Due to casting, yields SUB
       print(sub.z); //yields 1
       print(supr.z); //yields 0
       print(((Super)sub).z); //Due to casting, yields 0       
       print(((Sub)supr).z);//Due to casting yields 1
      
   }
  
  
   public static <T> void print(T t) {
       System.out.println(t);
   }

}