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Posted Date: 05 May 2009 Posted By: Aravind Shankar.K Member Level: Silver
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2008 Bharathidasan University B.C.A Object oriented programming:JAVA Question paper
DURATION:2 Hrs Max:50 Marks
DATE: 28-07-08 TIME :9.15a.m-11.15a.m
I Answer the following. (8*1=8)
1. OOPS allows us to decompose a problem into a number of entities called _____.
2. The wrapping up of data and methods into a single unit is known as _____ .
3. _____ means the ability to take more than one form.
4. What will be the output of the following code?
byte x= 64, y;
y=(byte) (x<<2);
System. out. println(y);
5. What will be the output of the following code:
byte b;
double d=417.35;
b=(byte) d;
System. out. println(b);
6. Given the value of a given variable, write the statement, without using if construct,
which will produce the absolute value of the variable.
7. Java compiler produces an intermedia code known as _______ for a machine that does not exist.
8. Define type casting.
II. Answer the following in short. (3*6=18)
1. a) Why is Java known as platform-neutral languages?
(or)
b) List the eight basic data types used in Java?
2. a) How is Java strongly associated with the Internet?
(or)
b) What is scope of a variable?
3. a) List at least five major differences between C and Java?
(or)
What is initialization? Why is it important?
III .Answer in detail. (2*12=24)
1. a) In what ways does a switch statement differ from if statement. Explain.
(or)
b) Write a program to find the number of and sum of all integers freater than 100
and less than 200 that are divisible by 7.
2. a) Form a program to display the series of numbers in a triangle.
(or)
b) Compare the terms of their functions, the following pairs of statements:
a) while and d….while
b) while and for
c) break and continue.
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