Download JNTUH MCA 2nd Sem R20 2022 May 872AA Java Programming Question Paper

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Code No:872AA R20

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JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

MCA 1I Semester Examinations, May - 2022

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JAVA PROGRAMMING

Time: 3 Hours Max.Marks:75

Answer any five questions

All questions carry equal marks

1. Illustrate the use of ‘this” keyword with an example. Differentiate between procedural language and OOP. [7+8]

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2. What is the main purpose of Constructor? How to invoke a constructor in JAVA? Write a java program to illustrate the usage of conditional statements. [8+7]
3. Explain the creation of packages and accessing a package with sample program. Write the importance of abstract classes. [8+7]
4. Illustrate the use of ‘super’ and ‘final’ key words in java. Explain the benefits of inheritance. [8+7]
5. Explain nested try and final statements in exceptional handling. Demonstrate the definition and implementation of interface in java. [7+8]
6. Distinguish between checked and unchecked exceptions. Demonstrate Java program for array index out of bound and divide by zero exception. [7+8]

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7. Explain the following Layout Managers.
   1. border layout
   2. grid bag layout
8. Write a short note on following:
   1. JFrame
   2. Scroll Panes. [8+7]

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9. Explain the life cycle of an applet. Write the differences between multi-threading and multitasking. [7+8]

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