Download JNTUH MCA 3rd Sem R13 2018 June-July 813AQ Java Programming Question Paper

Download JNTUH (Jawaharlal nehru technological university) MCA (Master of Computer Applications) 3rd Sem (Third Semester) Regulation-R13 2018 June-July 813AQ Java Programming Previous Question Paper

R13

Code No: 813AQ

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

MCA III Semester Examinations, June/July - 2018

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) Give code to demonstrate the use of `this' keyword.







[4]

b) How to define and import packages in Java?









[4]

c) What is the use of HashMap class?











[4]

d) What is the need of thread synchronization? Give suitable example.



[4]

e) Differentiate between applet and application programs.







[4]



PART - B

















5 ? 8 Marks = 40

2.

What features of Java makes it a robust language? Explain with illustrations.

[8]

OR

3.

Write a program to read a sentence from the user and search for a given string in this
sentence. Use String class methods to display the search results.





[8]



4.

What is an interface? How does it differ from abstract class? Explain partial
implementation of an interface.













[8]

OR

5.

Explain various forms of inheritance along with their benefits. Use suitable code segments
to support your discussion.













[8]


6.

Write a program to demonstrate random access file operations. Consider your class
students data in that file.















[8]

OR

7.

Make a comparison of client server communication mechanisms ? sockets, datagrams with
necessary code.

















[8]



8.

What are the benefits of exception handling? Java uses five keywords for exception
handling. Demonstrate these keywords usage.









[8]

OR

9.

Write a program to create multiple threads and assign different priorities to them. [8]



10.

Describe model-view-controller architecture for application development.

[8]

OR

11.

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

[8]



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