What is an abstract class?
What is an abstract class?
✍: Guest
Abstract class must be extended/subclassed (to be useful). It serves as a template. A class that is abstract may not be instantiated (ie, you may not call its constructor), abstract class may contain static data. Any class with an abstract method is automatically abstract itself, and must be declared as such.
A class may be declared abstract even if it has no abstract methods. This prevents it from being instantiated.
2013-04-30, 2428👍, 0💬
Related Topics:
What if I write static public void instead of public static void?
What if I write static public void instead of public static void? Program compiles and runs properly. 2013-05-03, 2750👍, 0💬
What if the main method is declared as private?
What if the main method is declared as private? The program compiles properly but at runtime it will give "Main method not public." message. 2013-05-02, 2525👍, 0💬
Difference between Vector and ArrayList?
Difference between Vector and ArrayList? Vector is synchronized whereas arraylist is not. 2013-04-26, 2414👍, 0💬