Programming & Computer Science Answers

Create the class Circle with attribute radius to find the area of circle. Assign the values for data member using copy constructor and display the result. Finally free the resources of data objects using destructor member function. (Note: Area of circle = 3.14 * radius * radius

One box have some apples and another box have some oranges, develop a C++ program to find the sum of fruits and double the sum of fruits in the box using call by reference concept.

Write a function second_last_digit in C++ and call function that print the second last digit of the given number. The second last digit is being referred to the digit in the tens place in the given number. 

For example, if the given number is 197, the second last digit is 9.

Note 1 - The second last digit should be returned as a positive number. i.e. if the given number is -197, the second last digit is 9.

Note 2 - If the given number is a single-digit number, then the second last digit does not exist. In such cases, the program should print -1. i.e. if the given number is 5, the second last digit should be print as -1.

Create a class Armstrong and include startnumber and endnumber as data member and aslo include member function findArmstrongNumbers() to find all the Armstrong numbers between startnumber and endnumber. If sum of cubes of each digit of the number is equal to the number itself, then the number is called an Armstrong number.

Develop a C++ program to calculate sum of square root from 1 to n numbers using recursive functions

Develop a C++ program to get the CGPA and print the following status according to the given CGPA by using else if ladder statement. [Note: Use call by value]

1. CGPA < 50 "FAIL"

2. 50 >= CGPA <=60 "FIRST"

3. 60 > CGPA <=70 "SECOND"

4. 70 > CGPA <=80 "THIRD"

5. CGPA >80 "DISTINCTION

Write a program that print the second last digit of the given number. The second last digit is being referred to the digit in the tens place in the given number.

For example, if the given number is 197, the second last digit is 9.

Note 1 - The second last digit should be returned as a positive number. i.e. if the given number is -197, the second last digit is 9.

Note 2 - If the given number is a single-digit number, then the second last digit does not exist. In such cases, the program should print -1. i.e. if the given number is 5, the second last digit should be print as -1.

Declare the class Employee, consisting of data members are emp_number, emp_name, department, salary and net_salary. The member functions are GetEmpDetails() to accept information for an employee, Calculate_DA() to calculate DA=20% of salary and display() to display the information of a employee.

7. What is the binary representation of the following hexadecimal numbers?

a. A4693FBC

b. B697C7A1

c. 2B3D9461

6. What is the hexadecimal representation of each of the following binary numbers?

a. 0011 0101 1101 1010

b. 1100 1110 1010 0011

c. 1111 1110 1101 1011