Download JNTUA B.Tech 4-2 R13 2018 July Supple 13A05403 Java Programming Question Paper

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Code: 13A05403

R13

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B.Tech IV Year II Semester (R13) Advanced Supplementary Examinations July 2018

JAVA PROGRAMMING

(Electronics & Instrumentation Engineering)

Time: 3 hours

Max. Marks: 70

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PART - A

(Compulsory Question)

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1. Answer the following: (10 X 02 = 20 Marks)
   1. Compare and contrast equals () versus ==.
   2. List the variants of string compare functions.

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   3. What is type conversion in java? Explain.
   4. Demonstrate the usage of super keyword.
   5. What is four major differences between interface & class?
   6. Discuss Byte Array Output Stream.
   7. Why do we need cookies?

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   8. Differentiate between java applet & java application.
   9. List the inetaddress class methods.
   10. What are the two swing key features?

PART - B

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

UNIT - I

2. Explain in detail arithmetic operator, bitwise operator, incremental & decrement operator with proper example. Write a program to demonstrating increment & decrement operator using conditional operator.

   OR

   3. (a) Discuss string constructors.
      (b) Differentiate between string and string buffer with an apt example, signifying their usage.

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UNIT - II

4. What are constructors & parameterized constructors? Explain in detail with example. Write a program for constructor to use 'this' keyword.

   OR

   5. Define a package. Why do we need packages? Illustrate with suitable example, class member access with respect to packages.

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6. Describe the java throwable class hierarchy and the types of exceptions. Can you claim multiple exceptions in a method declaration? Illustrate by means of an example.

   OR

   7. Explain classification of stream classes. Explain various types of byte stream classes & character stream classes in detail.

UNIT - IV

8. Define multithreading. Explain with an example of an application that needs multithreading.

   OR

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   9. What is an applet? Explain in detail about applet life cycle with suitable diagram. Write a program to draw circle & rectangle filled with red color.

UNIT - V

10. (a) Write a program to create form for recounting registration after result declaration using swing components.
    (b) Give syntax of four constructors of Jtree class.

    OR

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    11. Discuss delegation event model for event handling in Java. Explain with a simple program.

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