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

C++ General Interview Questions

Questions Answers Views Company eMail

Write a corrected statement in c++ so that the statement will work properly. x =+ 7;

2 3824

Write a corrected statement in c++ so that the statement will work properly. x + y=z;

2 3977

If you had the following code: int x = 23; int *y; y = &x; The instruction y++; does what?

2 4588

Write a single instruction that will find the remainder of integral division when x is divided by y. Have the answer stored in z.

1 3399

Write a single instruction that will store an EVEN random integer between 54 and 212 inclusive in the variable myran. (NOTE only generate EVEN random numbers)

1884

Given the following seqment of code containing a group of nested if instructions: y = 9; if ((x==3) || (x == 5)) y++; else if (x == 2) y *= 2; else if (x == ) y-= 7; else y = 8; if the value of x is 4 before the nested IFs are executed, what is the value of y after the nested IFs are executed?

1958

Given the following seqment of code containing a group of nested if instructions: y = 9; if ((x==3) || (x == 5)) y++; else if (x == 2) y *= 2; else if (x == 4 ) y-= 7; else y = 8; Enter a segment of code (without any IF statements) that does exectly the same thing using the switch structure.

1 3656

Given the following function definition: int doit(int &x, int y, int &z) { x = 3*x; y = y + 5; z = x+y; return z - 4; } int a = 5, b = 7, c = 9, d = 11; d = doit(a,b,c);

2 6865

Write a C/C++ program that connects to a MySQL server and checks if the InnoDB plug-in is installed on it. If so, your program should print the maximum number of concurrent threads that the InnoDB plug-in can create

2585

#include void main() { class x { public: int func(int) { cout<<"cool"; return 1; } } }

Infosys,

1 4693

Write a program and call it sortcheck.cpp which receives 10 numbers from input and checks whether these numbers are in ascending order or not. You are not allowed to use arrays. You should not define more than three variables

BirlaSoft, Crayonz,

2 4752

write a c++ program that gives output 1 1 2 1 2 3 1 2 3 4 1 2 3 4 5 using looping statement

2 6231

What do you mean by abstraction. Explain your answer?

5 12901

What is compilation?

Datamatics, TCS,

1 5153

Write a C/C++ program that connects to a MySQL server and checks if the InnoDB plug-in is installed on it. If so, your program should print the total number of disk writes by MySQL.

Webyog,

4 11292

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Un-Answered Questions { C++ General }

What is the outcome of cout< a) 16 b) 17 c) 16.5

981

What is called array?

1029

Is c++ pass by reference or value?

1009

What is the v-ptr?

1112

Assume an array of structure is in order by studentID field of the record, where student IDs go from 101 to 500. Write the most efficient pseudocode algorithm you can to find the record with a specific studentID if every single student ID from 101 to 500 is used and the array has 400 elements. Write the most efficient pseudocode algorithm you can to find a record with a studentID near the end of the IDs, say in the range from 450 to 500, if not every single student ID in the range of 101 to 500 is used and the array size is only 300

2177

How can you quickly find the number of elements stored in a static array? Why is it difficult to store linked list in an array?

945

Can I make ios apps with c++?

994

What is difference between malloc()/free() and new/delete?

1122

When can I use a forward declaration?

1038

Are vectors passed by reference c++?

946

what is upcasting in C++?

1126

How delete [] is different from delete?

963

What is prototype in c++ with example?

1075

How do you flush std cout?

1041

What is setbase c++?

1062

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