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Posted By: kondapalli Member Level: Gold Posted Date: 04 Jun 2008
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2007 Jawaharlal Nehru Technological University B.Tech Electronics & computers INTERNET & JAVA setno 1 Question paper
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1. (a) Describe the general structure of a Java program with the help of an example
program. [8]
(b) Why class name is same name as file name in Java ? [4]
(c) What is the use of import statement in Java? Explain [4]
2. (a) Describe the guidelines for Java programming style and documentation. [10]
(b) Java is a freeform language . Comment . [6]
3. (a) What is the purpose of a method ? How do you declare a method ? How do
you invoke a method ? [8]
(b) Define method abstraction in Java ? Write a Java program to implement
method abstraction. [8]
4. (a) How do classes help us to organize our programs ? [8]
(b) What are objects ? How they are created from a class ? [8]
5. (a) What is the purpose of StringTokenizer class? Name the interface it imple-
ments? [5]
(b) Detail the constructors in the StringTokenizer class. What are the packages
that define String Buffer and StringTokenizer classes? [5]
(c) Write an example program to illustrate its usage. [6]
6. Differentiate the following terms :-
(a) single inheritance Vs multiple inheritance [4]
(b) this Vs super [4]
(c) overloading Vs Overriding [4]
(d) abstract method Vs interface. [4]
7. Write an applet to draw the following shapes with different colour,
(a) Ellipse [2]
(b) Polygon [2]
(c) Cube [2]
1 of 2
Code No: RR411901 Set No. 1
(d) Cylinder. [2]
(e) Cylender [2]
(f) Star [2]
(g) Circle inside a square [2]
(h) Circle outside a square [2]
8. Write a Java program at server side that will receive a connection from a client,
send a string to the client and closes the connection. Explain the program. [16]
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