HP PLACEMENT PAPERS -------- Placement Paper

HP PLACEMENT PAPERS -------- Placement Paper - 2

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HP PLACEMENT PAPERS -------- Placement Paper - 2..

Answer / dharati

3 # define swap(a,b) temp=a; a=b; b=temp;
main( )
{
int i, j, temp;
i=5;
j=10;
temp=0;
if( i > j)
swap( i, j );
printf( "%d %d %d", i, j, temp);
}
Ans: On compiling i got ans 10, 0, 0. I did not
understand the concept. Please
expalin this to me.
its because macro is expanded as

temp = i;
i = j;
j = temp;

the condition gets false as i < j and first statement i.e.
temp = a is not executed and remaining statements gets
executed and results in i = 10 and j = 0.

Is This Answer Correct ?

8 Yes

2 No

HP PLACEMENT PAPERS -------- Placement Paper - 2..

Answer / guest

HP Placement Papers

HP Technical Test Procedure

Section A. ------50qns(general appitude,english etc):
Section B. ------ 10 Questions on Computer concepts.
Section C. ------ 30 Questions on C

HP Technical Test questions

1. WAP find and replace a character in a string.
2. WA function to perform the substraction of
two .Eg:char N1="123",N2="478",
N3=-355(N1-N2).
3. WAP dynamically intialize a 2 dimentional array
Eg:5x20,accept strings and check
for vowels and display the no.finally free the space
allocated .
4. WAP read a line from file from location N1 to N2 using
command line agruments
Eg:exe 10 20 a.c
5. WAP find the largest of 4 no using macros.

HP Interview Questions and Java Questions

General section
Computer science general, c/c++ section, Java
section ,The question paper had 48
questions to be answered in 1hr. Time will be quite
sufficient. They have different
sets of question papers. .

1 General section : computer science general knowledge
2. Computer science general: simple questions

1. HP acquired this company in 2002. Which is the company
a) Compaq b) Dell c) option 3 d) Option4
Ans: a

2. What does 3G denote
a) 3rd generation mobile communication b) 3rd
generation computer languages
c) option 3 d) option4
Ans: a

3. An application program that is used by the users to get
the inofrmation from the
backend of some application like databases:
a) application server b)proxy server c)
database server d)option 4
Ans: database server

4. Which of the following is not true about the e-mail
a) It can be accessed by a client program using POP
b) It can be accessed by a client program using imap
protocol
c) option 3
d) option 4
Ans: I don't remember the answer but first 2 are true.

5. Some quesion regarding the company and who developed it
( the thing to remember
is that Apple produce Macintosh computers).

C Questions and C++ questions

c/c++ section: questions on c/c++, programs o/p
etc.

1 main( )
{
unsigned int i=3;
while( i >=0)
printf( "%d", i--);
}
how many times will the printf stmt be executed?
a)0 b)3 c)4 d)infinite
Ans: I think the answer is infinite, b'cos 'i' is an
unsigned integer and it will not
decrement below '0' and hence end up in an infinite
loop.(yes, i checked and it
is getting stuck in an infinite loop)

2. main( )
{
int x,y, z;
x=2;
y=5;
z= x+++y;
printf("%d %d %d", x, y z);
}
a)3 5 7 b)option 2 c)option 3 d)option 4
Ans: a

3 # define swap(a,b) temp=a; a=b; b=temp;
main( )
{
int i, j, temp;
i=5;
j=10;
temp=0;
if( i > j)
swap( i, j );
printf( "%d %d %d", i, j, temp);
}
Ans: On compiling i got ans 10, 0, 0. I did not
understand the concept. Please
expalin this to me.

4. Java section: questions on java related stuff.
1) Java was initially code named as:
a)Oak b)green c)miller d)option4
Ans: Oak

5. What is not true about the following statements about
java.
a) it is compiled using javac compiler
b) the compiled files have .class extension.
c) such files cannot be transfered from one comp to
another.
d) they use the java interpreter
Ans: c

6. Why is the synchronize used?
a) to initialize multiple objects b)to lock an object c)
option3 d)option 4
Ans: b (probably)