Saurastra University 2006 B.C.A Computer Application java & Multi - Question Paper

SP-1915] one [Contd..
*SP-1915*
SP-1915 Seat No.__________
B. C. A. (Sem. VI) exam
April / May – 2006
J
Time : three Hours] [Total Marks : 100
1 discuss any 4 : 20
(a) Write a note on Garbage Collection.
(b) What is an array? discuss multidimensional array in
Java.
(c) What is constructor? discuss Constructor overloading
with an example program.
(d) What is method overriding? discuss with an example
program.
(e) Differentiate: Java Applet and Java Application.
2 discuss any 4 : 20
(a) Differentiate: String and StringBuffer class.
(b) Write a note on CharacterStream and ByteStream
classes.
(c) discuss any 3 methods of File class with an example
program.
(d) What is an interface? discuss inheritance in interface
with diagram.
(e) Write a note on Event Delegation Model.
3 discuss any 4 : 20
(a) Note on Applet Life Cycle.
(b) Short note on InetAddress class.
(c) Write a note on Wrapper classes in Java.
(d) Write a note on java across specifiers.
(e) What is an Exception? discuss Exception handling
mechanism in Java.
4 discuss any 4 : 20
(a) Write various applications of multimedia with an
example.
(b) discuss Vector and Raster graphics image.
(c) discuss Hypertext and Hypermedia.
(d) discuss the elements of multimedia.
(e) Language of Sound
5 (i) Attempt the subsequent : 20
(a) We cannot create subclass from a final class.
(b) Abstract class contains only abstract methods.
(c) Object class is a super class of all java classes.
(d) String is a primitive data kind in Java
(e) Byte is a wrapper class while byte is a primitive
data kind in Java.
(ii) Write a java program that takes integer no. as an input
and check whether that no is prime or not.
(iii) Write a java applet to generate subsequent graphics.
(iv) Write a java applet to generate subsequent layout suing
button controls.
SP-1915] two [ 500 / 7-29 ]
______________

Earning:   Approval pending.