JNTUA MCA 3rd Sem last 10 year 2010-2020 Previous Question Papers (JNTU Anantapur)
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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- Define abstraction. Differentiate it from information hiding.
- Give the operator hierarchy.
- Is Java a robust language? Justify your answer.
- Why Java do not have destructor for classes?
- Demonstrate the concept of dynamic method dispatch.
- How to implement multilevel inheritance among interfaces?
- Describe the scope of variables in nested classes and inner classes.
- With an example, explain static inner class.
- What is a package? How is it created?
- Write a Java program to read a sentence from user and display number of words present in this sentence.
- Differentiate between HashMap and HashSet.
- Describe random access file operations.
- Make a comparison of sockets and datagrams.
- Explain the significance of InetAddress class.
- Write a program to demonstrate the use of ‘throw’ keyword in exception handling.
- How to achieve synchronization among threads?
- Why swing components are recommended over AWT components? Explain.
- Give an overview of JButton class.
- Discuss various types of layout managers.
- How does a listener registers with one or more event sources? Explain with necessary code.
- What is an applet? How does it differ from application program? Write / construct an applet to draw a ‘smiley’ face.
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