N A L A N D A O P E N U N I V E R S I T Y
Master of Computer Application Part-II
PAPER-XIX
(Object Oriented Technologies and Java Programming)
Annual Examination, 2018
Time 3 Hours. Full Marks 80
Answer any Five Questions.
All questions carry equal marks.
1. What is multithreading What are the advantages of multithreading What is a main thread
in the context of Java
2. Explain how an event is handled in Java with the help of an example program. Write a Java
program that accepts the input from the keyboard and writes it to a text file.
3. What is a Package in Java How are they related to CLASSPATH Explain with the help of an
example program.
4. What is an Interface in Java How are they different from ABSTRACT classes Write a
program in Java to implement Interface.
5. How is Character class in Java different to String class Explain how you will compile two
objects of String class. Also write a program that converts lowercase characters to uppercase
characters of a string.
6. What Is the purpose of the following Stream classes
Print Stream Random Access File
Byte Array lnput Stream Filter Output Stream
7. Explain the following with the help of a diagram/example/program, if needed
Paint( Method of Applet HTML Applet Tag
Button Checkbox Group
8. Explain with the help of an example program, how interthread communication is performed in
Java using wait( and notify( and other methods.
9. t the salient features of object oriented programming approach that distinguishes it from the
procedural programming.
10. Explain the following with the help of an example of each
Dynamic Initialization Operator Precedence
Switch Statement Array Initialization