Download GTU BE/B.Tech 2019 Summer 5th Sem Old 150704 Object Oriented Programming With Java Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 5th Sem Old 150704 Object Oriented Programming With Java Previous Question Paper

Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ? V(OLD) EXAMINATION ? SUMMER 2019
Subject Code: 150704 Date: 20/06/2019

Subject Name: Object Oriented Programming With Java

Time: 02:30 PM TO 05:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.

MARKS

Q.1 (a) Define polymorphism with its need. Define and explain static and
dynamic binding using program.
07
(b) What is an Inheritance? Explain its types with proper diagram and
suitable example(s).
07

Q.2 (a) Explain following keywords: this, super, final and static 07
(b) Write a program which checks whether entered number is prime or not? 07
OR
(b) Write a program to check that whether the name given from command
line is file or not? If it is a file then print the size of file and if it is
directory then it should display the name of all files in it.
07
Q.3 (a) What is an Access Specifier? Explain it?s with suitable example with
appropriate output in detail.
07
(b) How can we open and read text file in JAVA? Explain your answer with
suitable example. Also use command line argument for passing a
filename.
07
OR
Q.3 (a) Differentiate Abstract class and Interface with suitable example. 07
(b) What is a collection in JAVA? Differentiate HashMap and Hashtable
with suitable example.
07
Q.4 (a) Differentiate String with StringBuffer class. List out the methods
available with String class and explain any five with proper JAVA code
in detail.
07
(b) What is an Exception? List out various built-in exceptions in JAVA and
explain any one Exception class with suitable example.
07

OR
Q.4 (a) What is Multithreading? Explain Thread life cycle with proper JAVA
code.
07
(b) What is Variable? How can we define variable in JAVA? Also list rules
for valid variable names.
07
Q.5 (a) Differentiate Applet Vs. Swing. Explain the life cycle of applet with
suitable example.
07
(b) What is synchronization? Write a program that uses thread
synchronization with proper output.
07
OR

Q.5 (a) What do you mean by Event Delegation Model in JAVA? How the
concept of adapter classes is used in event handling? Explain it with
suitable example.
07
(b) Write down a code for passing an Echo message by using TCP in
Network Programming.
07
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