Download JNTUH MCA 3rd Sem R17 2020 November 843AE Java Programming Question Paper

Download JNTUH (Jawaharlal nehru technological university) MCA (Master of Computer Applications) 3rd Sem (Third Semester) Regulation-R17 2020 November 843AE Java Programming Previous Question Paper

S OCT 2020

R17

Code No: 843AE















JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

MCA III Semester Examinations, October/ November - 2020

JAVA PROGRAMMING

Time: 2 Hours















Max.Marks:75



Answer any five questions

All questions carry equal marks

----



1.

How objects oriented programming paradigm will help programmer the complexity?
Explain with suitable example.













[15]


2.

Describe various forms of inheritance with suitable code segments and also discuss the
limitations and costs of inheritance.











[15]


3.

How Java handles exceptions? Write a program to explain the usage of all five
keywords in exception handling.













[15]


4.

Write a program to handle keyboard events using delegation event model.

[15]


5.

Discuss lifecycle of an applet and demonstrate parameter passing to applets.

[15]


6.a)

Differentiate between method overloading and method overriding

b)

What features of Java make it a robust language?







[7+8]



7.a)

Differentiate between abstract class and interface.

b)

Java program performs I/O through streams. Discuss the two types of streams. [7+8]


8.a)

Write a program to demonstrate the value( ) and valueOf( ) methods of enumeration.

b)

How to embed supplemental information into a source file? Explain with an example.






















[7+8]



---oo0oo---