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Posted By: Sree.... Member Level: Diamond Posted Date: 13 Jun 2008
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2006 Andhra Pradesh State Jawaharlal Nehru Technological University B.Tech OBJECT ORIENTED PROGRAMMING THROUGH JAVA Set No. 3 Question paper
Code No: RR411006 Set No. 3
IV B.Tech I Semester Supplementary Examinations, March 2006
OBJECT ORIENTED PROGRAMMING THROUGH JAVA
( Common to Electronics & Instrumentation Engineering, Electronics &
Control Engineering and Electronics & Telematics)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
? ? ? ? ?
1. (a) Write down the syntax and execution procedure of different kinds of if state-
ments in Java. [8]
(b) Write a Java program to find the sum of all elements in the one dimensional
array. (Define a class representing array with necessary data members and a
method to find the sum) [8]
2. (a) What is a class ? How does it accomplish data hiding ? [6]
(b) Explain the difference between an object and a class. [6]
(c) What is a constructor ? what are its special properties ? [4]
3. (a) Distinguish between the following terms.
i. Data abstraction and Data encapsulation [3]
ii. Inheritanace and Polymorphism. [3]
iii. Dynamic binding and Message passing [4]
(b) How are data and methods organised in OOP paradigm. [3]
(c) How will you select a programming for a particular project ? [3]
4. Write a java program to create frame with two button called father and mother.
When he click the father button the name of the father, his age and designation
must appear. When you click mother similar detail of mother appears. [16]
5. (a) Explain the class hierarchy of various window types. [8]
(b) Write down any event generators. [8]
6. Write an applet program to demonstrate the drawing of line, circle, oval rectangle
and 3D rectangle. [16]
7. Explain with simple examples, various ways of controlling threads? [16]
8. Write a Java program that enables to copy a text file to the destination file. Use
buffered streams. [16]
? ? ? ? ?
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