Page 292 - ComputerScience_Class_11

12. A class SeriesSum is designed to calculate the sum of the following series:

Sum = x 2 + x 4 + x 6 + . . . x n
1! 3! 5! (n-1)!

Some of the members of the class are given below:
Data Members/Instance variables
x : Stores an integer number
n : Stores the number of terms
sum : double variable to store the sum of the series
Member Functions
SeriesSum(int xx, int nn) : Constructor to assign x=xx and n=nn
double find fact(int m) : Returns the factorial of m using the recursive technique
double find power(int x, int y) : Returns x raised to the power of y using the recursive technique
void calculate() : Calculates the sum of the series by invoking the recursive functions respectively
void display() : Displays the sum of the series
Also, define the main() function to create an object and call the functions accordingly to enable the task.
13. Design a class to overload a function compare() with the specifications given as follows:
void compare(int, int) : Compares two integer values and prints the greater of the two integers
void compare (char, char) : Compares the numeric values of two characters and prints the character with a higher
numeric value
void compare (String, String) : Compares the length of the two strings and prints the longer of the two.

290 Touchpad Computer Science (Ver. 3.0)-XI