Andhra University 2005 B.Tech Information Technology - INTERNET CONCEPTS & JAVA PROGRAMMING - Question Paper

MODEL PAPER

B. Tech (IT) Degree exam

Second Year - 2nd Semester

INTERNET CONCEPTS & JAVA PROGRAMMING

Time: three hrs
Max Marks: 70

First ques. is Compulsory

ans any 4 from the remaining ques.

All ques. carry equal marks

ans all parts of any ques. at 1 place

Q1. ans all ques.
(a) What is the signature of a method?
(b) What is an abstract class?
(c) What is the difference ranging from socket and port?
(d) Can you Instantiate an interface?
(e) What is Javap?
(f) How do applets differ from applications?
(g) Should applets have constructors?

Q2. (a) What is the difference ranging from an instance variable and class variable?
(b) How do you create an instance of a class?

Q3. (a) Narrate the difference ranging from Overriding and Overloading?
(b) Does the Java give virtual methods like C++?

Q4. (a) How do you initialize an array of objects?
(b) Write a program to count the number of white space characters in a file.

Q5. (a) What is an Exception?
(b) How do you create a thread and begin it running? discuss with example.

Q6. (a) How do you put an applet into a Web page?
(b) Can you put menus and menu bar on your applet? discuss.

Q7. (a) discuss various kinds of Sockets.
(b) Write a client/server programs for one-one chatting.

Q8. (a) elaborate the various Mouse Listeners?
(b) Write an applet program for drawing bar charts.

Earning:   Approval pending.