C++ General Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

C++ General Interview Questions

Questions Answers Views Company eMail

Evaluate the following expression as C++ would do :8 * 9 + 2 * 5 a) 82 b) 79 c) 370 d) list

1048

Which is not an ANSII C++ function a) sin() b) tmpnam() c) kbhit()

1591

What does getch() do according to the ANSI C++ standard a) Reads in a character b) Checks the keyboard buffer c) Nothing in particular (Its not defined there)

1096

Will a C compiler always compile C++ code a) Yes b) No c) Only optimized compilers

1102

What ANSI C++ function clears the screen a) clrscr() b) clear() c) Its not defined by the ANSI C++ standard

1086

What number of digits that can be accuratly stored in a float (based on the IEEE Standard 754)? a) 6 b) 38 c) An unlimited number

1334

Which of the following is evaluated first: a) && b) || c) !

2417

What does 7/9*9 equal ? a) 1 b) 0.08642 c) 0

999

Which of the following is not a valid declaration for main() a) int main() b) int main(int argc, char *argv[]) c) They both work

1130

Evaluate as true or false: !(1 &&0 || !1) a) True b) False c) Invalid statement

1255

Which command properly allocates memory a) char *a=new char[20]; b) char a=new char[20]; c) char a=new char(20.0);

1114

What operator is used to access a struct through a pointer a) >> b) -> c) *

1161

True or false, if you keep incrementing a variable, it will become negative a) True b) False c) It depends

2435

What character terminates all character array strings a) b) . c) END

1346

If you push the numbers (in order) 1, 3, and 5 onto a stack, which pops out first a) 1 b) 5 c) 3

1430

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Un-Answered Questions { C++ General }

Write a program which is required to process the time of a clock in hours and minutes, entered from the keyboard. With this program, there are two requirements for any data entered by a user: 1. The data must be of the correct type (in this case, two ints). 2. The data must be in the correct range: this means that, for the minutes, negative numbers and any number above 59 must be rejected; for the hours, negative numbers and any number above 23 must be rejected. Output error message for invalid data input. Output the time one and a half hour after the time input. i.e. Hour: 22 Min: 32 One and a half hour after 22:32 is 00:02

2004

What is ios class in c++?

1175

How would you use the functions memcpy(), memset(), memmove()?

1142

What does the ios::ate argument do?

1234

What is &x in c++?

1046

In which situation the program terminates before reaching the breakpoint set by the user at the beginning of the mainq method?

1132

What is endl c++?

1152

What is the basic of c++?

1105

What is c++ redistributable?

1295

Define anonymous class.

1135

Why do we use pointers in c++?

1117

How java is different from c and c++?

1257

You have two pairs: new() and delete() and another pair : alloc() and free(). Explain differences between eg. New() and malloc()

1219

Explain the register storage classes in c++.

1226

Can you help me with this one? Make a program that when a user inputed a Product Name, it will display its price, and when the user inputed the quantity of the inputed product, it will show its total price. The output must be like this: Product Name: Price: Quantity: Total Price: ..this is the list of products to be inputed: Cellphone - 1500 Washing Machine - 5200 Television - 6000 Refrigirator - 8000 Oven - 2000 Computer - 11000 thanks..:D

3742

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