Download SGBAU BSc 2019 Summer 3rd Sem Computer Application OOP With Java Programming Question Paper

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B.Sc. Part-II (Semester-IIT) Examination

COMPUTER APPLICATION (VOC.) (NEW)

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(OOPS with Java Programming)

Time : Three Hours] [Maximum Marks : 80

Note :— (1) ALL questions are compulsory.

(2) Question Nos. 2 to 13 carry equal marks.

(3) Assume suitable data wherever necessary.

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1. (A) Fill in the blanks : 2

(i) The smallest individual units in the program is known as __________.

(ii) __________ means data hiding.

(iii) A __________ is a collection of classes and interface.

(iv) Java supports a special type of method called __________.

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(B) Choose the correct alternatives : 2

(i) Which is not a valid type of variable ?

(a) Global variable (b) Local variable

(c) Class variable (d) Instance variable

(ii) JRE stands for :

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(a) Java Running Environment (b) Java Runtime Environment

(c) Java Runnable Environment (d) None of these

(iii) Which of these cannot be declared static ?

(a) Class (b) Object

(c) Variable (d) Method

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(iv) Applets are __________ program.

(a) Client side (b) Server side

(c) Both (a) and (b) (d) None of these

(C) Answer in ONE sentence : 4

(i) What is Java Virtual Machine ?

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(ii) What is Applet ?

(iii) What is Array ?

(iv) What is Exception ?

2. (A) Explain the benefits and application of OOPS. 6

(B) Explain the following : 6

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(i) Java byte code

(ii) Portability

(iii) Security.

OR

3. (A) Explain the following : 6

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(i) Objects

(ii) Classes.

(B) Explain the Java development tools with suitable example 6

4. (A) Write a program in Java to find factorial of given integer by using do-while loop. 6

(B) Explain the concept of type casting with suitable example. 6

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OR

5. (A) Write a Java program to find out the area of rectangle using single inheritance. 6

(B) Explain difference between do-while and while loop. 6

6. (A) Explain the following : 6

(i) Finalize method

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(ii) Abstract method.

(B) What is overloading ? Explain with example. 6

OR

7. (A) Explain static members with examples. 6

(B) How data members of an object can be initialized ? Explain with example. 6

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8. (A) What is Array ? Explain one dimensional array with suitable example. 6

(B) Write a program in Java for sorting of array element in ascending order. 6

OR

9. (A) Explain the concept of Package. What are its applications ? How do we use them ? 6

(B) Explain the procedure for creating an Array. 6

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10. (A) Explain any three methods of thread class 6

(B) Explain the different types of errors. 6

OR

11. (A) Explain the Java’s way of exception handling. 6

(B) Explain how to create and destroy the thread with suitable example. 6

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12. (A) Differentiate between Java application program and Applet program. 6

(B) Explain the procedure of Building Applet Code. 6

OR

13. (A) State the life cycle of an Applet. 6

(B) Explain the procedure for Writing Applets. 6

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