Download JNTUH MCA 3rd Sem R17 2021 February 843AE Java Programming Question Paper

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R17

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Code No: 843AE

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

MCA III Semester Examinations, February - 2021

JAVA PROGRAMMING

Time: 2 hours Max.Marks:75

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Answer any five questions

All questions carry equal marks

1. Compare and contrast object oriented programming & structured programming. [15]
2. a) What is the significance of “this” keyword in object oriented programming?
   b) Differentiate between message and method. [7+8]

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3. a) What is the difference between an interface and an API? Explain.
   b) Explain about the method overriding with an example. [7+8]
4. Write a program which uses the class defined in another package which takes a matrix and returns determinant of it. [15]
5. What are checked and unchecked exceptions? Explain with example. [15]
6. Explain how synchronization is achieved among threads to access a shared resource. [15]

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7. What is an applet? What are the methods that are called by AWT when an applet is initialized and terminated? Explain. [15]
8. Explain J Combo Box and J Tabbed Pane classes. [15]

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