C++ Code Interview Questions
Questions Answers Views Company eMail

write a program to calculate the amount of investment after a period n years if the principal investors was p and interest is calculated using compound interest,formular=a=p(1+r)^n

Jomo Kenyatta University,

2358

solve the problem in the programming language C++"if a five digit number is input through the keyboard.Write a program to calculate the sum of its digits(hint: use the modulus operator)

2922

write a program using 2 D that searches a number and display the number of items 12 inputs values input 15,20, 13, 30, 38, 40,16, 18, 20 ,18 ,20 enter no. to search : 20

3355

Write a simple encryption program using string function which apply the substitution method.

5527

readers and writers problem

Cognizant,

1 4597

What output does the following code generate? Why? What output does it generate if you make A::Foo() a pure virtual function? class A { A() { this->Foo(); } virtual void Foo() { cout << "A::Foo()" << endl; } }; class B : public A { B() { this->Foo(); } virtual void Foo() { cout << "A::Foo()" << endl; } }; int main(int, char**) { A objectA; B objectB; return 0; }

631

What output does this program generate as shown? Why? class A { A() { cout << "A::A()" << endl; } ~A() { cout << "A::~A()" << endl; throw "A::exception"; } }; class B { B() { cout << "B::B()" << endl; throw "B::exception"; } ~B() { cout << "B::~B()"; } }; int main(int, char**) { try { cout << "Entering try...catch block" << endl; A objectA; B objectB; cout << "Exiting try...catch block" << endl; } catch (char* ex) { cout << ex << endl; } return 0; }

570

Question 1: Implement a base class Appointment and derived classes Onetime, Daily, Weekly, and Monthly. An appointment has a description (for example, “see the dentist”) and a date and time. Write a virtual function occurs_on(int year, int month, int day) that checks whether the appointment occurs on that date. For example, for a monthly appointment, you must check whether the day of the month matches. Then fill a vector of Appointment* with a mixture of appointments. Have the user enter a date and print out all appointments that happen on that date. *This Should Be Done IN C++

543


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Un-Answered Questions { C++ Code }

how to write a program that opens a file and display in reverse order?

2557


develop a program to calculate and print body mass index for 200 employees

2204


Create a program to read two random data set in two files named data1.txt and data2.txt manifold contains integer numbers, whereas data2.txt file contains the float type numbers. Simpanlahmasing each into 2 pieces of data that is an array of type integer array and an array of type float, then calculate the average numbers in the second array.

2136


Question 1: Implement a base class Appointment and derived classes Onetime, Daily, Weekly, and Monthly. An appointment has a description (for example, “see the dentist”) and a date and time. Write a virtual function occurs_on(int year, int month, int day) that checks whether the appointment occurs on that date. For example, for a monthly appointment, you must check whether the day of the month matches. Then fill a vector of Appointment* with a mixture of appointments. Have the user enter a date and print out all appointments that happen on that date. *This Should Be Done IN C++

543


how to take time as input in the format (12:02:13) from user so that controls remains between these columns?

1804






write a function that allocates memory for a single data type passed as a parameter.the function uses the new operator and return a pointer to the allocated memory.the function must catch and handle any exception during allocation

2388


Write a C++ program without using any loop (if, for, while etc) to print prime numbers from 1 to 100 and 100 to 1 (Do not use 200 print statements!!!)

3255


write a program using 2 D that searches a number and display the number of items 12 inputs values input 15,20, 13, 30, 38, 40,16, 18, 20 ,18 ,20 enter no. to search : 20

3355


Code for Two Classes for Doing Gzip in Memory?

2801


write a program that creates a sequenced array of numbers starting with 1 and alternately add 1 and then 2 to create the text number in the series , as shown below. 1,33,4,6,7,9,............147,148,150 Then , using a binary search , searches the array 100 times using randomly generated targets in the range of 1 to 150

3258


Performance Algorithm A performs 10n2 basic operations and algorithm B performs 300 lg n basic operations. For what value of n does algorithm B start to show its better performance?

7322


Ask the user to input three positive integers M, N and q. Make the 2 dimensional array of integers with size MxN, where all the elements of I (I = 1,…,M) line will be members of geometrical progression with first element equal to the number of line (I) and denominator q.

3383


find level of following tree (state, parent) " J,D I,D H,C E,B F,B G,C B,A D,A C,A A,& K,E L,E L,F M,F N,G O,H P,I P,H Q,I R,J S,K U,P T,L

1994


i really need help about this.. write a program to display the set of odd and even numbers separately. find the highest and lowest value of the given numbers.

1961


1+1/2!+1/3!+...+1/n!

1935