Code No: 823AD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
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MCA III Semester Examinations, January - 2018JAVA PROGRAMMING
Time: 3hrs Max.Marks:75
Note: This question paper contains two parts A and B.
Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B
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consists of 5 Units. Answer any one full question from each unit. Each question carries10 marks and may have a, b, c as sub questions.
PART - A
5 x 5 Marks = 25
- a) Write a short note on Polymorphism with an example. [5]
- b) Explain about packages. [5]
- c) Write a short on TreeMap. [5]
- d) Explain about unchecked exception. [5]
- e) Explain the concept of applets. [5]
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PART -B
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5 x 10 Marks =50- Explain about various parameter passing techniques with a sample program. [10]
OR
Explain different types of constructors in Java. Give suitable examples. [10] - Explain about the following:
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a) Inheritance
b) Member access rules. [5+5]
OR
Explain the usage of following concepts with a sample programs
a) Abstract class--- Content provided by FirstRanker.com ---
b) final keyword. [5+5] - Explain the following Legacy collection classes
a) Stack
b) Vector. [5+5]
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Discuss in detail the following
a) StringTokenizer
b) Scanner. [5+5] - Explain about the usage of try, catch and finally. [10]
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Explain thread life cycle. [10] - Discuss about Flow Layout and Border Layout. [10]
OR
Write a Java program to demonstrate the key handling events. [10]
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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
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