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1. What is the output of printf("%d")
2. What will happen if I say delete this
3. Difference between "C structure" and "C++ structure".
4. Diffrence between a "assignment operator" and a "copy
constructor"
5. What is the difference between "overloading" and
"overridding"?
6. Explain the need for "Virtual Destructor".
7. Can we have "Virtual Constructors"?
8. What are the different types of polymorphism?
9. What are Virtual Functions? How to implement virtual
functions in "C"
10. What are the different types of Storage classes?
11. What is Namespace?
12. What are the types of STL containers?.
13. Difference between "vector" and "array"?
14. How to write a program such that it will delete itself
after exectution?
15. Can we generate a C++ source code from the binary file?
16. What are inline functions?
17. Talk sometiming about profiling?
18. How many lines of code you have written for a single
program?
19. What is "strstream" ?
20. How to write Multithreaded applications using C++?
21. Explain "passing by value", "passing by pointer" and
"passing by reference"
22. Write any small program that will compile in "C" but not
in "C++"
23. Have you heard of "mutable" keyword?
24. What is a "RTTI"?
25. Is there something that I can do in C and not in C++?
26. Why preincrement operator is faster than postincrement?
27. What is the difference between "calloc" and "malloc"?
28. What will happen if I allocate memory using "new" and
free it using "free" or allocate sing "calloc" and free it
using "delete"?
29. What is Memory Alignment?
30. Explain working of printf.
31. Difference between "printf" and "sprintf".
32. What is "map" in STL?
33. When shall I use Multiple Inheritance?
34. What are the techniques you use for debugging?
35. How to reduce a final size of executable?
36. Give 2 examples of a code optimization.
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Answer / saikumar
1)ans :Error generated .because every statement end with semicolon(;),but in the given question there is no semicolon(;).
2)ans :The program will be terminated.
3)ans :IN 'c' language program should write from main()function and it's execution starts from main()function top to bottom.
4)ans:assignment operator (=)is operator which is assign the right most result to left most operand.
copy constructor:constructor means which is used to create the objects (or) any thing
| Is This Answer Correct ? | 3 Yes | 5 No |
Answer / saikumar
22)ans :
main()
{
int i=1,n=10;
while(i<=n)
{
printf("%d\n");
}
| Is This Answer Correct ? | 0 Yes | 5 No |
Explain how do you print only part of a string?
what are the facialities provided by you after the selection of the student.
What will be printed as the result of the operation below: #include<..> int x; int modifyvalue() { return(x+=10); } int changevalue(int x) { return(x+=1); } void main() { int x=10; x++; changevalue(x); x++; modifyvalue(); printf("First output:%d\n",x); x++; changevalue(x); printf("Second output:%d\n",x); modifyvalue(); printf("Third output:%d\n",x); }
52.write a “Hello World” program in “c” without using a semicolon? 53.Give a method to count the number of ones in a 32 bit number? 54.write a program that print itself even if the source file is deleted? 55.Given an unsigned integer, find if the number is power of 2?
25 Answers Datamatics, Solartis, TCS, ThinkBox, Trine,
How can I call fortran?
How can I find out the size of a file, prior to reading it in?
#include<stdio.h> int main(){ int i=10; int *ptr=&i; *ptr=(int *)20; printf("%d",i); return 0; } Output: 20 can anyone explain how came the output is 20
What is the use of ?
A character flag or control mechanism that delineates one data item from another a) variable b) constant c) delimiter d) call by reference
Can we access RAM? How? Whats the range of access? Similarly What are other hardware we can access?
write a c program to find the roots of a quadratic equation ax2 + bx + c = 0
11 Answers CSC, St Marys, TATA,
can any one tell that i have a variable which is declared as static but i want this variable to be visible to the other files? how?
C 
