Periyar University 2006 B.Sc Mathematics JAVA AND INTERNET - Question Paper

B.Sc. DEGREE EXAMINATION, APRIL/MAY 2006.
Sixth Semester
Mathematics (C.A.)
Paper XVIII — JAVA AND INTERNET
Time : 3 hours Maximum : 75 marks
PART A — (10 x two = 20 marks) ans ALL ques..
1. Why Java is known as platform-neutral language?
2. List the Features of Java.
3. Differentiate ranging from if ... else and switch statements.
4. Find the errors and list them
(a) if (code > 1);
a = b +'c; else
a = 0;
(b) for(int x = 0; x < 10; x++);
System.out.println("Hello Magh \ n");
5. What is a super class?
»
6. How to create 1 dimensional array in Java?
7. What is an interface?
8. What is an exception and why do we need to handle it?
9. What is a browser?
10. What is Proxy Server?
PART B — (5 x four = 20 marks) ans ALL ques..
11. (a) Write a Java program to compute the
Simple Interest by studying inputs from the keyboard
using the formula SI = P * N * R/100.
Or
(b) Write a Java program to solve Quadratic formula.
12. (a) Write a Java program to illustrate while loop
structure.
Or
(b) What is a Constructor? elaborate its special properties?
13. (a) What do you mean by inheritance? elaborate
the different inheritance supported in Java?
Or
(b) What is the need of wrapper classes? provide an example.
14. (a) What is the difference ranging from a package
and a class?
Or
(b) discuss any four built in exception classes with description.
15. (a) discuss the History of Internet.
Or (b) define any 4 basic HTML tags.
PART C — (5 x seven = 35 marks) ans ALL ques..
16. (a) discuss the various Data kinds that are
available in Java with their respective size and
example. (5)
(b) What do you mean by kind casting? (2)
Or
(c) How Java differs from C and C++. (3)
(d) Categorize any 4 Java Operators, list them and discuss. (4)
17. (a) Admission to a professional course is subject
to the subsequent conditions :
(i) Marks in mathematics >=60
(ii) Marks in physics >=50
(hi) Marks in chemistry >=40
(iv) Total in all 3 subjects >=200
provided the marks in the 3 subjects, write a program to process the applications to list the eligible candidates.
Or
(b) "Write a program in Java to create a class learner with the subsequent members.
Register Number, Name, Subject, Internal Mark, External Mark. describe methods to do the subsequent :
(i) Use constructor to initialize values to the members.
(ii) ProcessC ) method to compute the Total Marks and check whether the learner is 'PASS* or 'FAIL'.
(hi) Display all details.
18. (a) Write a program that adds list of Shopping list of 5 items from the command line and stores them in a record.
Also do the subsequent :
(i) Delete an Item from the list.
(ii) To add an item at a specified location in the list.
(hi) To add an item at the end of the list.
(iv) To print the contents of the vector.
Or
(b) What do you mean by method overriding? discuss with an example.
19. (a) Briefly discuss creating and accessing
packages in Java with an example.
Or
(b) How exceptions are handled using 'try, catch, finally' statements.
20. (a) discuss the process of connecting internet
through Dial-up network.
Or (b) discuss the subsequent HTML tags, (i) Image (ii) Links.

Earning:   Approval pending.