overridden « Polymorphism « Java Class Q&A

1. Does the super class not call the overridden method?    stackoverflow.com

I have the following classes:

class foo {
    public void a() {
        print("a");
    }
    public void ...

2. Why can derived classes only sometimes have specialized types in overridden methods?    stackoverflow.com

Let's say I have this base class:

abstract public class Base {
    abstract public Map save();
    abstract public void load(Map data);
}

3. In Java can you call a public overridden method from a different class?    stackoverflow.com

Typically an overridden method can be called with super. For example:

public class SuperClass {
   public void something() {
      out("called from super");
   }
}

public ...

4. Polymorphism in Overloaded and Overridden Methods    coderanch.com

Of course it will be compiler error in case 2. Horse class is a descendant to Animal. Animal is more 'wide' class, then the Horse. In terms of 'is-a' Horse is-an Animal, but Animal is-not a Horse. It's correct to assign Horse instance to Animal variable. But on compile time you still are working with Animal variable, and Animal doesn't have ...