Download JNTUH MCA 3rd Sem R13 2017 August 813AQ Java Programming Question Paper

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Code No: 813AQ

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

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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.

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PART - A 5 x 4 Marks = 20

1. a) What is a constructor? Explain briefly various types of constructors. [4]
   b) What is inner class? Write its uses. [4]
   c) Discuss about Java.net package. [4]
   d) Discuss about thread priorities and how do set the priority to a thread in java. [4]
   

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   e) Elaborate the life cycle of applet. [4]

PART - B 5 x 8 Marks = 40

2. a) Discuss various access modifiers in java.
   b) Demonstrate string class and the methods available in string class. [4+4]
   OR
   

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3. a) Write a java program to demonstrate method overloading.
   b) Write the features of java programming language. [4+4]

4. a) What is inheritance? Write its advantages.
   b) Write a java program to demonstrate multilevel inheritance. [4+4]
   

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   OR
5. a) What is interface? Explain how it is differ from abstract class.
   b) Design a java program to implement interface with an example. [4+4]

6. a) Give an account on Hash Table class and explain with example program.
   b) Discuss about Treemap interface in detail. [4+4]
   

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   OR
7. Explain the steps to create TCP connection using Socket class and design a java program to send a message to the server from client and waiting for response from the server. [8]

8. a) Give a note on checked and unchecked exception.
   b) Design a java class to handle checked and unchecked exception. [4+4]
   OR

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9. a) What is thread and explain life cycle of thread?
   b) Write a Java program to implement multi threading concept. [4+4]

10. a) Discuss various layout manages in java.
    b) Write a java program to create a frame which takes two integers and display the sum of two integers using button events. [4+4]
    OR

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11. a) What is delegation event model? Explain in detail.
    b) Write an applet program to draw an oval. [4+4]

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