Answer posted by Mohan on 2005-05-21 18:34:01: CMP uses abstract schema to map to the physical database
In cmp, the cmp bean is given an abstract schema name. In EQL you retrieve the data in a bean using these schema names. ...
Simply speaking a class or a method qualified with "abstract" keyword is an abstract class or abstract method. You create an abstract class when you want to manipulate a set of classes through
Abstract class is which base class cannot create object. eg. Inheritance ...
Abstract keyword declares either a method or a class. If a method has a abstract keyword in front of it, it is called abstract method.Abstract method has no body. It has only arguments and return type.
hi, Abstract classes can be subclassed and their objects can be created. Implementations can vary for the abstract methods by the subclasses. ...
In the interface all methods must be abstract; in the abstract class some methods can be concrete. In the interface no accessibility modifiers are allowed, which is ok in abstract classes.
Abstract classes act as the buliding block whose object cannot be created. We include common functionality in abstract class which can inherited by the sub classes. They are not 100% abstract whereas interface provide 100% abstraction in this no function ...
yaBut,you must provide implementation in same abstract class,as you cannot override that final method in sub class. ...
As part of your new application you need to create a custom class loader so that you can implement with custom security. So you need to create objects without knowing the class of the objects or how to create them. What pattern should you use for this?A Abstract factory B Factory Method C Builder D Prototype E Singleton
Answer: D
Which two method declarations are valid for an interface? (Choose two) A. public double methoda(); B. static void methoda(double d1); C. public final double methoda(); D. abstract public void methoda(); E. protected void methoda(double d1);
Answer: A, D
Its actual implementation is done by the Container. ...
This is what I feel about Interface, Actually Interface is very good in Designing the Class Structure. Whenever user want to use or implement a class and u want it to be implemented in a manner, or the class should have at least these methods U can specify ...
When To use Interface: An interface allows somebody to start from scratch to implement your interface(or) implement your interface in some other code whose original or primary purpose was quite different from your interface. To them, your interface is ...
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