Download JNTUA MCA 2017 Nov Reg-Supply 3rd Sem 9F00305 Java Programming Question Paper

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Code: 9F00305

MCA II Semester Regular & Supplementary Examinations November/December 2017

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JAVA PROGRAMMING

(For 2012, 2013, 2014, 2015 & 2016 admitted batches only)

Time: 3 hours Max. Marks: 60

Answer any FIVE questions

All questions carry equal marks

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1. Define abstraction. Differentiate it from information hiding.
2. Give the operator hierarchy.
3. Is Java a robust language? Justify your answer.
4. Why Java do not have destructor for classes?
5. Demonstrate the concept of dynamic method dispatch.

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6. How to implement multilevel inheritance among interfaces?
7. Describe the scope of variables in nested classes and inner classes.
8. With an example, explain static inner class.
9. What is a package? How is it created?
10. Write a Java program to read a sentence from user and display number of words present in this sentence.

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11. Differentiate between HashMap and HashSet.
12. Describe random access file operations.
13. Make a comparison of sockets and datagrams.
14. Explain the significance of InetAddress class.
15. Write a program to demonstrate the use of ‘throw’ keyword in exception handling.

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16. How to achieve synchronization among threads?
17. Why swing components are recommended over AWT components? Explain.
18. Give an overview of JButton class.
19. Discuss various types of layout managers.
20. How does a listener registers with one or more event sources? Explain with necessary code.

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21. What is an applet? How does it differ from application program? Write / construct an applet to draw a ‘smiley’ face.

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