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Page 1 of 3. No. of Printed Pages : 3 I MCS-024. MCA (Revised). Term-End Examination. December, 2011 oO. MCS-024 : OBJEC
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(d) What are shift operators ? How many types. of shift operators are available in Java ? 5. (e) Briefly explain benefit
MCS-024
No. of Printed Pages : 3
MCA (Revised) Term-End Examination
0
June, 2012 MCS-024 : OBJECT ORIENTED TECHNOLOGIES AND JAVA PROGRAMMING Maximum Marks : 100
Time : 3 hours Note :
1.
Question 1 is compulsory. Attempt any three from the rest.
(a)
What is multithreading ? Explain how does it help Java in its performance ?
5
(b)
Differentiate between throw and throws ?
5
(c)
What is Inheritance ? Briefly explain importance of super keyword in Java ?
5
(d)
What are shift operators ? How many types of shift operators are available in Java ?
5
(e)
Briefly explain benefits of stream classes.
5
(f)
Explain URL rewriting with an example.
5
(g)
Explain how exception handling is done in Java, with the help of an example.
5
(h)
What is a package in Java ? Explain how package is created in Java.
5
MCS-024
1
P.T.O.
2.
(a) Distinguish between the following terms 2.5x4=10 with examples : (i) Exception and Error (ii) Method overloading and overriding (iii) Final and Finally (iv) Instance variables and class variables. (b) What is constructor ? Explain constructor overloading in Java with an example.
3.
(a) What is the common usage of serialization? (b) What is the result of compiling and running the following program ? public class test
10
3 5
Public static void main (string args[ ]) int i = -1; i = i>>1 ; system.out. println (i) ;
(c)
Explain use of keyword this with the help of program ? (d) Create a class with in this package "Amount Inwords" to convert amount into words. (Consider amount not to be more than 100000) MCS-024
2
3 9
4.
5.
(a) What is URL ? Explain two constructor for URL, in Java.net package. Explain how you may connect to a URL in Java.
8
(b)
Write an applet that draws circle, a line, and a polygon inside the applet's visible area.
5
(c)
Compare the different layout managers in brief.
7
(a) Write a serulet program that fetches all data from client and stores it in a database successfully.
8
(b)
What do you mean by an event ? Explain different components of an event.
6
(c)
What are the different types of AWT components ? How are these components added to the container.