Download JNTUH (Jawaharlal nehru technological university) MCA (Master of Computer Applications) 3rd Sem (Third Semester) Regulation-R17 2022 March-April 843AE Marchapril Java Programming Previous Question Paper
R17
Code No:843AE
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
MCA III Semester Examinations, March/April - 2022
JAVA PROGRAMMING
Time: 3 Hours
Max.Marks:75
Answer any five questions
All questions carry equal marks
- - -
1.a)
Discuss the factors for the success of Java programming language.
b)
Define object. Compare it with class.
[8+7]
2.a)
Demonstrate method overriding concept.
b)
Write a program to count the frequency of a character in a given string.
[7+8]
3.a)
Illustrate different forms of inheritance.
b)
Differentiate between abstract class and interface.
[7+8]
4.a)
Write a program to implement multilevel inheritance using interfaces.
b)
Describe different methods of writing a file. Write a simple program to write your details
into a file named Bio.doc.
[7+8]
5.a)
What is an exception? Discuss unchecked exceptions and exception hierarchy in Java.
b)
Write a program to handle divide by zero exception.
[8+7]
6.a)
How to create threads in Java? Explain with illustrations.
b)
Discuss the Java support for inter thread communication.
[7+8]
7.a)
What is the significance of adapter classes in event handling?
b)
Write code to create a user interface for student registration for a technical event at your
college using AWT components.
[7+8]
8.a)
Describe applet life cycle and compare it with application program.
b)
Explain the importance of Model-View-Controller architecture.
[8+7]
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This post was last modified on 17 March 2023