sir plz send me a set of questions that been frequently
held in written examination during campus selection.
28
Am studying basic c++ programming, have been given the
following assignment. Design a linear program to calculate
the maximum stress a material can withstand given a force
and a diameter of a circle. To find the required area pi
should be defined.
Have most of the program sorted out but am at a loss as to
how to show the calculations required. Can anyone help?
please visit this site you'll find my question
this is my homework please answer it if you can
http://easyscience.org/ib/lofiversion/index.php/t36168.html
how can i access a direct (absolute, not the offset) memory
address?
here is what i tried:
wrote a program that ask's for an address from the user,
creates a FAR pointer to that adress and shows it. then the
user can increment/decrement the value in that address by
pressing p(inc+) and m(dec-).
NOW, i compiled that program and opened it twice (in 2
different windows) and gave twice the same address to it.
now look what happen - if i change the value in
one "window" of the program, it DOES NOT change in the
other! even if they point to the same address in the memory!
here is the code snippet:
//------------------------------------------------------
#include <stdio.h> //INCLUDE EVERY KNOWN HEADER FILE
#include <conio.h> //FOR ANY CASE...
#include <iostream.h>
#include <dos.h>
#include <process.h>
main()
{
int far *ptr; //FAR POINTER!!!
long address;
char key=0; //A KEY FROM THE KEYBOARD
int temp=0;
clrscr();
cout<<"Enter Address:";
cin>>hex>>address; //GETS THE ADDRESS
clrscr();
(long)ptr=address; temp=*ptr; //PUTS THE ADDRESS IN THE PTR
cout<<"["<<hex<<(unsigned long)ptr<<"]="<<*ptr<<" = "<<
(char)(*ptr);
//SHOWS: [address]=value=ASCII symbol.
while (key!=27) //WHILE YOU DONT PRESS ESC.
{
while(!kbhit()) //WHILE KEY IS NOT PRESSED
{
if (temp!=*ptr) { temp=*ptr; clrscr(); cout<<"["<<hex<<
(unsigned long)ptr<<"]="<<*ptr<<" = "<<(char)(*ptr); };
//IF THE VALUE HAS CHANGED, CLEAR THE SCREEN AND SHOW
//AGAIN
if (key=='p') {key=0; (*ptr)++; } //INCREMENT VALUE
if (key=='m') {key=0; (*ptr)--; } //DEC. VALUE
};
key=getch(); //IF A KEY IS PRESSED, READ IT FROM THE
//KEYBOARD
};
return 0; //IF ESC WAS THE KEY, EXIT THE PROGRAM
}
//---------------------------------------------------------
write a code for this. serial_number contained in the
header of the file will be read , if this serial number is
less than a previous serial number within a successfully
processed file, or is the same as another serial number
within a successfully processed file, or if the field
contains anything other than 7 digits, then the file must
error with the reason ‘Invalid SERIAL_NUMBER’.
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
58
design a c++ class for the chess board,provide a c++ class
definition for such class(only class definition is required)
97
Describe how to safeguard a system through acquisition of
an antivirus
Program and systematic backup.
58
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?
Explain when u will use Observer pattern and how u will
implement in c++ .
17
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.
along with your userid / name. ThanQ
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