If P is the population on the first day of the year, B is
the birth rate, and D is the death rate, the estimated
population at the end of the year is given by the formula:
The population growth rate is given by the formula:
B – D
Write a program that prompts the user to enter the starting
population, birth and death rates, and n, the number of
years. The program should then calculate and print the
estimated population after n years. Your program must have
at least the following functions:
1. growthRate: This function takes its parameters the
birth and death rates, and it returns the population growth
rate.
2. estimatedPopulation: This function takes its
parameters the current population, population growth rate,
and n, the number of years. It returns the estimated
population after n years
Your program should not accept a negative birth rate,
negative death rate, or a population less than 2.
please answer my question ....
Question In a class, there is a reference or pointer of an
object of
another class embedded, and the memory is either allocated
or assigned to the new object created for this class. In
the constructor, parameters are passed to initialize the
data members and the embedded object reference to get
inialized. What measures or design change should be advised
for proper destruction and avioding memory leaks, getting
pointers dangling for the embedded object memory
allocation? Please suggest.
Question Submitted By :: Sunil Kumar
I also faced this Question!! Rank Answer Posted By
Re: In a class, there is a reference or pointer of an
object of another class embedded, and the memory is either
allocated or assigned to the new object created for this
class. In the constructor, parameters are passed to
initialize the data members and the embedded object
reference to get inialized. What measures or design change
should be advised for proper destruction and avioding
memory leaks, getting pointers dangling for the embedded
object memory allocation? Please suggest.
Answer
# 1 use copy constructors
0 Shanthila
There is something to be taken care in destructor, in copy
constructor, suppose the memory is assigned to the embedded
member object pointer with the parameter passed value, but
if some other objects of different class also are pointing
to this memory, then if some one deletes the object then
this class member pointer object will become dangling, or
if the object is not deleted properly then there will be
memory leak. Please suggest the design change required to
handle or avoid this situation
39
Write a program using GUI concept for the scheduling
algorithms in Operating system like SJF,FCFS etc..
40
Describe the elements of Microsoft Word screen. Write down
steps for creating, saving, retrieving, editing and
printing a document.
59
When is the last time you coded in C/C++? What is the most
lines of original C/C++ code you have personally written in
one project? How confident are you in your ability to write
C or C++ without a reference?
How to handle exception in c++,
For example in a functions i am assigning memory to some
variables and also in next instructions in am dividing one
variable also.
If this functions generates a error while allocating memory
to those variable and also while dividing the variable if i
divide by zero then catch block how it will identify that
this error has cone from perticular instruction
39
Distinguish between:
a) Normal layout & Print Layout views
b) Windows Clipboard & office Clipboard
c) Save & Save As Commands
d) Program File & Data File
e) Pie Charts & Barr Charts
48
How the compilers arranges the various sections in the
executable image?
i hav very low percentage in 12th n BSCwhich is around
50.......coz it was just imposed on me 2 b a science
graduate,nw m doin MCA n hav aggregate 74% ....what shud i
answer if company's HR ask me about dis much low previous
percentage??????
i had specified the access specifier for abstarct class
member like (pure virtual function) as private.But it can
be accessed by the derived class.How the private member of
one class is accessed by other class.if any body face this
problem and found the solution plz reply to me.
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