// polymorphism/FieldAccess.java
// (c)2017 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://OnJava8.com for more book information.
// Direct field access is determined at compile time

class Super {
 public int field = 0;
 public int getField() { return field; }
}

class Sub extends Super {
 public int field = 1;
 @Override
 public int getField() { return field; }
 public int getSuperField() { return super.field; }
}

public class FieldAccess {
 public static void main(String[] args) {
 Super sup = new Sub(); // Upcast
 System.out.println("sup.field = " + sup.field +
 ", sup.getField() = " + sup.getField());
 Sub sub = new Sub();
 System.out.println("sub.field = " +
 sub.field + ", sub.getField() = " +
 sub.getField() +
 ", sub.getSuperField() = " +
 sub.getSuperField());
 }
}
/* Output:
sup.field = 0, sup.getField() = 1
sub.field = 1, sub.getField() = 1, sub.getSuperField()
= 0
*/