Answer / ravi raj

Abstract Class:
---------------
1.abstract class contain the abstract and non-abstract methods
2.abstract class contain static and non-static variables
3.through abstract class we can get 0-50% abstraction in java
4. if any class declared as a abstract i.e abstract class
5. we wont create instance for this class.
6. we cont make final for this class.

Interface :
-----------

1. Interface contains only abstracted methods.
2. it allows only static and final variables.
3. interface is by default abstracted and public.
4. through interface we get 100% abstraction.
5. we can solve the multiple threading in interface.

Answer / kumar rk

interface
---------
in java interfaces are fully unimplemented structures.
here all methods are public and abstract by default(added by compiler)

abstract class
--------------
abstract classes are partially implemented structure.
means it can have abstract method or may be not.
but in every case object cannot be created.

how the mapping can be done from jsp to actionservlet?

2 Answers   SolutionNET,

---

What is DTD?

3 Answers   Wipro,

---

What are the types of scaling?

0 Answers  

---

What are the oops concept?

0 Answers  

---

how can we load a file of a user in the database table?

3 Answers   ITC Infotech,

---

which deployment descriptor element is used to configure the authentication method? a. auth-config b. login-config c. sec-config

1 Answers  

---

Can you give me a simple example of using the requiredif validator rule?

0 Answers  

---

Explain about thread synchronization inside a monitor?

0 Answers   Saksoft,

---

how the action can be map from jsp page to bean class in mvc1

1 Answers   Photon,

---

what is the proxy pattern?

1 Answers  

---

explain the flow of struts?

2 Answers   SolutionNET,

---

Explain about RMI Architecture?

0 Answers  

---