abstract

how do we access a concrete method of an abstract class from a concrete class?

Could you be more specific?

What relationship does the concrete class have to the abstract class?

suppose if there is an abstract class x. show() is a concrete method in x class.
y is a class which extends x.
how do we access show() of class x?
can we override methods that are in abstract classes?

Yes you can override methods that are inherited from abstract classes as long as you obey the usual rules of overriding.

"breddy",

There aren't many rules that you need to worry about here on the Ranch, but one that we take very seriously regards the use of proper names. Please take a look at the JavaRanch Naming Policy and adjust your display name to match it.

In particular, your display name must be a first and a last name separated by a space character, and must not be obviously fictitious.

Thanks!
bear
JavaRanch Sheriff

can we create an object to an abstract class?

No, you can't create an instance of an abstract class with a constructor.

Here is an eg. showing how to access / override / overload a concrete method that is declared in the abstract base class.

Hi Keith,
can you tell me the difference between instance variable and an reference variable?

Hi krishnan,

are you sure that a.supershow() will work?
i dont think so this will work.

are you sure that a.supershow() will work?
i dont think so this will work.

why do you think so?

superShow() is a method in the extended class which in turn calls the super class' concrete method.

Here is the o/p from the above code.