Download JNTUA B.Tech 4-2 R15 2019 July Advanced Supple 15A10804 JAVA Programming Question Paper

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Code: 15A10804

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B.Tech IV Year II Semester (R15) Advanced Supplementary Examinations July 2019

JAVA PROGRAMMING

(Electronics & Instrumentation Engineering)

Time: 3 hours

Max. Marks: 70

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PART - A

(Compulsory Question)

Answer the following: (10 X 02 = 20 Marks)

1. (a) State the principles of OOP.
2. (b) How is a Java program compiled?

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3. (c) What is the use of net keyword?
4. (d) How are multiple inheritances achieved in Java?
5. (e) List the different exceptions that arise during runtime?
6. (f) Write a program to read a file using character stream.
7. (g) State the difference between multiprocessing & multithreading.

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8. (h) How do you manipulate URL in Java?
9. (i) What are the advantages of swing over awt?
10. (j) Give the syntax of draw image () method.

PART - B

(Answer all five units, 5 X 10 = 50 Marks)

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UNIT - I

1. Write a Java program to add two matrices.

   OR

2. Explain string and string buffer classes in Java.

UNIT - II

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1. Write a program to arrange numbers in ascending and descending order with an interface.

   OR

2. Explain the significance of abstract class and methods.

UNIT - III

1. Write a program to input name and age of a person and throw a user-defined exception if the entered age is negative.

   OR

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2. Describe various stream classes.

UNIT - IV

1. Write a program defining two threads, one for displaying the multiplication table of five and the other for the table of four.

   OR

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2. Describe the life cycle of an applet.

UNIT - V

1. Write a Java swing program to implement border method.

   OR

2. How do you create a modeless dialog box in Java?

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