Download JNTUH (Jawaharlal nehru technological university) MCA (Master of Computer Applications) 3rd Sem (Third Semester) Regulation-R13 2022 March-April Java Programming Previous Question Paper
R13
Code No:813AQ
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
MCA III Semester Examinations, March/April - 2022
JAVA PROGRAMMING
Time: 3 Hours
Max.Marks:60
Answer any five questions
All questions carry equal marks
- - -
1.a)
Explain constructor overloading with an example.
b)
What is auto boxing in java? Explain with an example.
[6+6]
2.a)
Discuss about polymorphism with an example program.
b)
Write a program that reads an integer between 0 and 1000 and adds all the digits in the
integer. For example, if an integer is 632, the sum of all its digits is 11.
[6+6]
3.a)
Give a brief summary on inheritance with examples.
b)
Describe the various forms of implementing interfaces.
[6+6]
4.
Explain how to create, access and import packages with an example program.
[12]
5.a)
Discuss the methods available in the Character Streams.
b)
What is difference between Array List and Linked List in collection framework? [6+6]
6.a)
Write a program to read a file content and extract words using String Tokenizer class.
b)
How ahash table can change the iterator? Explain.
[6+6]
7.a)
Differentiate betweenchecked exceptions and unchecked exceptions with examples.
b)
Write a java program to illustrate the usage of try and catch blocks.
[6+6]
8.a)
Write a Java program for keyboard events.
b)
Differentiate between applets and applications.
[6+6]
---oo0oo---
This post was last modified on 17 March 2023