Download JNTUH MCA 3rd Sem R17 2021 February 843AE Java Programming Question Paper

Download JNTUH (Jawaharlal nehru technological university) MCA (Master of Computer Applications) 3rd Sem (Third Semester) Regulation-R17 2021 February 843AE Java Programming Previous Question Paper

R17

Code No: 843AE















JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

MCA III Semester Examinations, February - 2021

JAVA PROGRAMMING

Time: 2 hours













Max.Marks:75



Answer any five questions

All questions carry equal marks

- - -



1.

Compare and contrast object oriented programming & structured programming. [15]


2.a)

What is the significance of "this" keyword in object oriented programming?

b)

Differentiate between message and method.









[7+8]







3.a) What is the difference between an interface and an API? Explain.
b)

Explain about the method overriding with an example.







[7+8]


4.

Write a program which uses the class defined in another package which takes a matrix
and returns determinant of it.













[15]


5.

What are checked and unchecked exceptions? Explain with example.



[15]


6.

Explain how synchronization is achieved among threads to access a shared resource.

[15]





7.

What is an applet? What are the methods that are called by AWT when an applet is
initialized and terminated? Explain.











[15]









8.

Explain J Combo Box and J Tabbed Pane classes.







[15]














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