This download link is referred from the post: JNTUH MCA 3rd Sem Last 10 Years 2023-2013 Question Papers R20-R09 || Jawaharlal nehru technological university
Code No: 813AQ
R13
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JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
MCA III Semester Examinations, March/April - 2022
JAVA PROGRAMMING
Time: 3 Hours Max. Marks: 60
Answer any five questions
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All questions carry equal marks
- a) Explain constructor overloading with an example.
b) What is auto boxing in java? Explain with an example. [6+6] - a) Discuss about polymorphism with an example program.
b) Write a program that reads an integer between 0 and 1000 and adds all the digits in the integer. For example, if an integer is 632, the sum of all its digits is 11. [6+6] - Give a brief summary on inheritance with examples.
Describe the various forms of implementing interfaces. [6+6] - Explain how to create, access and import packages with an example program. [12]
- Discuss the methods available in the Character Streams.
What is difference between Array List and Linked List in collection framework? [6+6] - Write a program to read a file content and extract words using String Tokenizer class.
How a hash table can change the iterator? Explain. [6+6] - Differentiate between checked exceptions and unchecked exceptions with examples.
Write a java program to illustrate the usage of try and catch blocks. [6+6] - Write a Java program for keyboard events.
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Differentiate between applets and applications. [6+6]
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This download link is referred from the post: JNTUH MCA 3rd Sem Last 10 Years 2023-2013 Question Papers R20-R09 || Jawaharlal nehru technological university