OnJava8-Examples/polymorphism/StaticPolymorphism.java
2015-12-15 11:47:04 -08:00

37 lines
895 B
Java

// polymorphism/StaticPolymorphism.java
// (c)2016 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
// Static methods are not polymorphic.
class StaticSuper {
public static String staticGet() {
return "Base staticGet()";
}
public String dynamicGet() {
return "Base dynamicGet()";
}
}
class StaticSub extends StaticSuper {
public static String staticGet() {
return "Derived staticGet()";
}
@Override
public String dynamicGet() {
return "Derived dynamicGet()";
}
}
public class StaticPolymorphism {
public static void main(String[] args) {
StaticSuper sup = new StaticSub(); // Upcast
System.out.println(StaticSuper.staticGet());
System.out.println(sup.dynamicGet());
}
}
/* Output:
Base staticGet()
Derived dynamicGet()
*/