JAVA Question Bank - Audisankara Institute of Technology

Question Bank



UNIT
-
1



*1. Explain the way of viewing the world in terms of agents, communities,methods and
responsibilities.

***2. What is object oriented programming?How it is different from procedure
-
oriented programming?
*3.Write a short note
s on method binding,overriding and exceptions.

***4. a) Write about Abstraction Mechanisms.
b) What is the need of OOP paradigm? ***5. a)
Write briefly about classes and instances.


b) Write a breif note on class hierarchy with an examp
le. **6.
Explain the concepts of OOPS in detail.

**7. a) Write a short notes on coping with complexity.

b) What are the unique advantages of object Oriented Programming?


*8. Write summary on OOP.


UNIT
-
2




***1. Describe the genesis of java. Explai
n briefly about buzz words in Java.


**2. Explain about operators in java.


*3. a) Explain the concept of arrays in Java.


b) Write a java program to multiply two given matrices. ***4.
a) What is a Class? Explain how objects are created
using class.


b) What is the purpose of using a method? Explain how a method is declared and invoked.


** 5. a) Write about constructor and its properties? Explain how to invoke a constructor.
b) Explain about constructor overloading w
ith an example.


*6. Explain the parameter passing with an example.

***7. a) What is recursion?Write a java progarm to print the factorial of a given number using
recursion.


b) List the String and StringBuffer

handling methods.
***8. List and explain the control statements used in java.



UNIT
-
3




***1. Write briefly about forms of inheritance.


**2. What is Inheritance? Explain about the types of inheritance.


*3. Explain briefly about keywords supe
r and final.
*4. Explain abstract class with an example **5.a)
Explain briefily about method overriding.


b) Explain briefly about object class in detail. ***6.a)
Write the benefits of inheritance.


b) Write briefly about costs of i
nheritance.


**7. Give an overview of sub class, sub type and substitutability. ***8.
Describe the member access rules with examples.

UNIT
-
4




**1. Explain process of creating and accessing a package.

**2.a) What is the scope of access modifie
rs?


b) Write an example java program for user defined packages.






*3. What is PATH and CLASS PATH? Explain how to import PACKAGES.
***4. Briefly explain the following: a) Interface.

b)

Implementing Interface.

c)

Nested Interface.

d)

Variable
s in Interface.

**5.What is the difference between concrete and abstract classes?

**6. List the Input and Output stream Hierarchy and their purposes. ***7.a)
Prove that all the methods in interface are automatically public.


b) Prove that the fi
elds in an interface are implicitly static and final.

*8.a) Write a java program on multiple inheritance using interfaces.
b) Write a java program using StringTokenizer.



UNIT
-
5





**1.a) What is an Exception? Give the classification of except
ions.
b) Explain about exception handling with an example.


*2. What is the difference between checked and unchecked exceptions in java?

***3.a) Write about thread life cycle.


b) Explain briefly about the ways of creating threads.

***4.a)
Write short notes on multiple catch blocks.


b) Write about the user defined Exception with an example.
**5.a) Differentiate multithreading and multitasking.


b) Give an example java program for multithreading.
*6.a) Write s
hort notes on finally block.


b) Briefly explain the following methods with an example:

a)

isAlive()

b)

wait()

c)

notify()

d)

notifyAll()

e)

suspend()

***7.a) List the thread priorities with their purposes.


b) List at least two methods of ThreadGro
up and also write Thread class forms.
*8.Explain the following exceptions with an example each a) Arithmetic
Exception.

b)

NullPointer Exception.

c)

Number format Exception.

UNIT
-
6




***1.a) What is Delegation Event Model? What are its bene
fits?
b) Write about AWT class hierarchy.

*2. Explain in detail about the following Event class
a) ComponentEvent

b)

ContainerEvent

c)

FocusEvent

d)

ItemEvent

**3. What are the methods supported by KeyListener and MouseListener Interfaces
? Explain each of
them with an example.

***4. What are the types of Layout Managers? Write a java program on Grid Layout .






*5. How do you create Button class, CheckBox and Choice? Explain the steps in detail.


**6. Write short notes on adapter classes
and inner classes.

***7. List the types of Listeners in detail.

***8. Discuss briefly about mouse events and keyboard events.

UNIT
-
7




***1. a) What is an applet? How can you create an applet?
b) Write about applet life cycle.

***2. a) Give
the differences between applet and application.
b) Write about repaint() shortly.

**3. a) What is the difference between JList and JCombo box?


b) Why JList does not support scrolling? How this can be remedied?Explain with an example. **4
.
What are the various JFC containers? List them according to their functionality. Explain each of them
with an example.

*5.a) Write an example java program that illustrates passing parameters to applet.
b) Give the syntax for Applet tag. ***6.a) Wha
t are the limitations of AWT?
b) Describe MVC architecture.

*7. Explain the steps involved in creating JCheckBox, JRadioButton,JButton and JLabel.

**8. a) What are the differences between AWT and Swing programming?
b) Write a java progra
m on JApplet.



UNIT
-
8




***1.a) What is TCP/IP? What is the difference between TCP/IP and UDP?


b) What is Socket? Which socket is used for client and server in TCP?
***2.a) What is a Cookie? Write a java program to illustrate the use of Cookie
s.
b) What is INet address? How to create an INet address? What is its use?

*3. Write a socket program to design a client
-

server application that takes the password as input and
checks whether it is correct or not.The program should print the a
pproriate message.

***4.a) Write a java program that illustrates multiple clients.
b) Write a java program that illustrates Datagram.

**5. Write constructors of ServerSocket and also their purposes.
*6.a) Write a program that illustrates URL and URL C
onnection.
b) Write short notes on (i) Autoboxing (ii) Enumerations

*7. How can you create a custom RMI socket factory? How can you specify the socket factory in your
application? Give an example.

*8.Briefly explain about

a) Annotations

b) G
enerics