Download JNTUH MCA 3rd Sem R17 2022 March-April 843AE Marchapril Java Programming Question Paper

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Code No: 843AE

R17

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JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

MCA III Semester Examinations, March/April - 2022

JAVA PROGRAMMING

Time: 3 Hours Max. Marks: 75

Answer any five questions

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All questions carry equal marks

1. a) Discuss the factors for the success of Java programming language.
   b) Define object. Compare it with class. [8+7]
2. a) Demonstrate method overriding concept.
   b) Write a program to count the frequency of a character in a given string. [7+8]

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3. a) Illustrate different forms of inheritance.
4. a) Differentiate between abstract class and interface. [7+8]
   b) Write a program to implement multilevel inheritance using interfaces.
5. a) Describe different methods of writing a file. Write a simple program to write your details into a file named Bio.doc. [7+8]
6. a) What is an exception? Discuss unchecked exceptions and exception hierarchy in Java.
   

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   b) Write a program to handle divide by zero exception. [8+7]
7. a) How to create threads in Java? Explain with illustrations.
   b) Discuss the Java support for inter thread communication. [7+8]
8. a) What is the significance of adapter classes in event handling?
   b) Write code to create a user interface for student registration for a technical event at your college using AWT components. [7+8]

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9. a) Describe applet life cycle and compare it with application program.
   b) Explain the importance of Model-View-Controller architecture. [8+7]

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