Download JNTUH MCA 3rd Sem R13 2017 August 813AQ Java Programming Question Paper

Download JNTUH (Jawaharlal nehru technological university) MCA (Master of Computer Applications) 3rd Sem (Third Semester) Regulation-R13 2017 August 813AQ Java Programming Previous Question Paper


R13

Code No: 813AQ

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

MCA III Semester Examinations, August - 2017

JAVA PROGRAMMING

Time: 3 Hours















Max. Marks: 60


Note: This question paper contains two parts A and B.

Part A is compulsory which carries 20 marks. Answer all questions in Part A. Part B
consists of 5 Units. Answer any one full question from each unit. Each question carries
8 marks and may have a, b, c as sub questions.



PART - A



















5 ? 4 Marks = 20

1.a)

What is a constructor? Explain briefly various types of constructors.



[4]

b) What is inner class? Write its uses.











[4]



c) Discuss about Java.net package.













[4]

d) Discuss about thread priorities and how do set the priory to a thread in java.

[4]

e) Elaborate the life cycle of applet.













[4]



PART - B

















5 ? 8 Marks = 40

2.a)

Discuss various access modifiers in java.

b)

Demonstrate string class and the methods available in string class.



[4+4]

OR

3.a)

Write a java program to demonstrate method overloading.

b)

Write the features of java programming language.







[4+4]



4.a)

What is inheritance? Write its advantages.

b)

Write a java program to demonstrate multilevel inheritance.





[4+4]

OR

5.a)

What is interface? Explain how it is differ from abstract class.

b)

Design a java program to implement interface with an example.





[4+4]


6.a)

Give an account on Hash Table class and explain with example program.

b)

Discuss about Treemap interface in detail.









[4+4]

OR

7.

Explain the steps to create TCP connection using Socket class and design a java program
to send a message to the server from client and waiting for response from the server.[8]


8.a)

Give a note on checked and unchecked exception.

b)

Design a java class to handle checked and unchecked exception.



[4+4]

OR

9.a)

What is thread and explain life cycle of thread?

b)

Write a Java program to implement multi threading concept.





[4+4]



10.a) Discuss various layout manages in java.
b) Write a java program to create a frame which takes two integers and display the sum of

two integers using button events.













[4+4]

OR

11.a) What is delegation event model? Explain in detail.
b) Write an applet program to draw an oval.











[4+4]



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This post was last modified on 17 March 2023