Download JNTUH MCA 3rd Sem R17 2019 December 843AE Java Programming Question Paper

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Code No: 843AE

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

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MCA I Semester Examinations, December - 2019

JAVA PROGRAMMING

Time: 3hrs Max.Marks:75

Note: This question contains two parts A and B.

Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks and may have a, b, c as sub questions.

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PART - A

5 x 5 Marks =25

1. a) Explain various iterative statements in Java with examples. [5]
2. b) Define CLASSPATH. Discuss the role of class path in packages. [5]
3. c) What is Multi threading? Differentiate between the multi tasking and multi threading. [5]

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4. d) Explain mouse event class with an example. [5]
5. e) Compare and contrast Swing and AWT in Java. [5]

PART -B

5 x 10 Marks =50

1. a) Explain principles of object oriented programming languages.
   

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   b) What are constructor, destructor? How to implement constructors in Java? [5+5]
   OR
2. a) Explain how to implement Dynamic_method dispatch in Java.
   b) What is Inner class? What are its’ Advantages? How to implement Inner class in Java? [5+5]
3. a) What is inheritance? Describe various forms of inheritance in Java? Give an example Java code for each case.
   

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   b) What is package? How to implement user defined packages in Java. [5+5]
   OR
4. a) What is interface? How to implement interface in Java.
   b) List out various classes in Java.io package and explain them clearly. [5+5]
5. a) How to implement multithreading in Java.
   

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   b) How to implement user defined exceptions in Java with example. [5+5]
   OR
6. a) Explain how to implement thread priorities in Java with examples.
   b) Explain multiple catch statement with example. [5+5]
7. a) Discuss about Border and grid Layout managers in Java
   

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   b) What is Listener Interfaces? Illustrate Mouse motion listener interfaces with suitable Java Program. [5+5]
   OR
8. a) What is AWT? Explain in detail about hierarchy for AWT.
   b) Explain about Events, Event sources event classes. [5+5]
9. a) What is swing? Explain various swing components.
   

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   b) Develop an applet that receives principle, rate of interest, number of years from the key board and display the simple interest on the screen. [5+5]
   OR
10. a) Write Java program that works as a calculator using in Java swings.
    b) Describe parameters passing to an applet with a program. [5+5]

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