Download JNTUH MCA 3rd Sem R13 2021 February 813AQ Java Programming Question Paper

Download JNTUH (Jawaharlal nehru technological university) MCA (Master of Computer Applications) 3rd Sem (Third Semester) Regulation-R13 2021 February 813AQ Java Programming Previous Question Paper

R13

Code No: 813AQ

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

MCA III Semester Examinations, February - 2021

JAVA PROGRAMMING

Time: 2 hours











Max. Marks: 60



Answer any five questions

All questions carry equal marks

- - -


1.

Discuss about for-each loop on Java.











[12]


2.a)

Describe class and constructor with an example program.

b)

What is method overloading? Explain in detail with example.





[6+6]



3.

Define interface? Explain multiple inheritance concept and implement in Java.

[12]


4.a)

What is run time polymorphism? Implement it in Java with an example.

b)

Describe inner class in detail.













[6+6]


5.a)

Define Socket and Server Socket classes.

b)

Write Java program for client and server communication using Socket.



[6+6]


6.a)

Describe File Output and File Input Streams.

b)

Write a Java program to copy one file into another file.







[6+6]



7.

Write a Java program to handle multiple exceptions in Java.





[12]


8.

Illustrate and explain keyboard event handling mechanism in Java.



[12]




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