Download JNTUH (Jawaharlal nehru technological university) MCA (Master of Computer Applications) 3rd Sem (Third Semester) Regulation-R13 2021 August 813AQ Java Programming Previous Question Paper
R13
Code No: 813AQ
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
MCA III Semester Examinations, July/August - 2021
2021
JAVA PROGRAMMING
Time: 3 Hours
Max. Marks: 60
Answer any five questions
All questions carry equal marks
- - -
1.
What object oriented features are supported by Java language? Briefly explain with suitable
code segments.
[12]
2.a)
Write a program to demonstrate constructor overloading.
b)
Differentiate between Abstract classes and interfaces.
[7+5]
3.
What is inheritance? What are the costs of inheritance? Explain hierarchical and multi-level
inheritance.
[12]
4.a)
Is every nested class an inner class? Justify your answer.
b)
What is the role of CLASSPATH variable for package usage?
[6+6]
5.a)
Write a program to append a file content to another file, read the two file names as
command line arguments.
b)
What is the need of string Tokenizer?
[7+5]
6.
What is the support provided by Java for network programming through java.net package?
Give an the overview.
[12]
7.
How can a user define his/her own exception? Write a program to explain handling such
exception.
[12]
8.
What is an event? List various types of events and respective sources of events in event
handling.
[12]
---oo0oo---
This post was last modified on 17 March 2023