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Posted By: krishna mohan Member Level: Gold Posted Date: 31 May 2008
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2006 Jawaharlal Nehru Technological University B.E Electronics and Communication OOPS THROUGH JAVA Question paper
OOPS THROUGH JAVA SET NO : 1
November - 2006
(Common to II B.tech II Semester CSE,IT & ECE)
(II B.Tech I Semester ME)
Answer any FIVE Questions
All questions carry equal marks
1. Write a program that will compute the following series
a) 1/1+1/2+1/3+........+1/n
b) 1/1+1/2+1/2^(2)+.......+1/2^(n) [8+8]
2. a) When do we declare a method or class final?
b) When do we declare a method or class abstract?
c) Describe different levels of access protections avilable in java?
[4+4+8]
3. What is inheritance ? Describe the differences in inheritances in
c++ and java? [16]
4. Write a programme to create a class containing a inner class that
it self contains an inner class. Repeat this using static classes.
Note the names of the class files produced by the compiler. [16]
5. a) What is multithreading? What are its advantages?
b) Compare process based and thread based multitasking. [6+10]
6. Explain in detail about the following event classes
a) Component Event
b) Container Event
c) Focus Event [6+5+5]
7. What is the use of Jframe containing a JDesktoppane, which has a
single JInternalFrame. [16]
8. Write a short note on:
a) Currency Class
b) Proxy Servers
C) DNS. [5+5+6]
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