Single Inheritance.

Write a C++ program to find out the payroll system using single inheritance.

Program Algorithm:

Step 1: Include the header files

Step 2: Declare the base class emp.

Step 3: Define and declare the function get () to get the employee details.

Step 4: Declare the derived class salary.

Step 5: Declare and define the function get1 () to get the salary details.

Step 6: Define the function calculate () to find the net pay.

Step 7: Define the function display ().

Step 8: Create the derived class object.

Step 9: Read the number of employees.

Step 10: Call the function get (), get1 () and calculate () to each employee.

Step 11: Call the display ().

Program Code in C++:

#include<iostream.h>

#include<conio.h>

class emp

{

public:

int eno;

char name[20],des[20];

void get()

{

cout<<"Enter the employee number:";

cin>>eno;

cout<<"Enter the employee name:";

cin>>name;

cout<<"Enter the designation:";

cin>>des;

}

};

class salary:public emp

{

float bp,hra,da,pf,np;

public:

void get1()

{

cout<<"Enter the basic pay:";

cin>>bp;

cout<<"Enter the Humen Resource Allowance:";

cin>>hra;

cout<<"Enter the Dearness Allowance :";

cin>>da;

cout<<"Enter the Profitablity Fund:";

cin>>pf;

}

void calculate()

{

np=bp+hra+da-pf;

}

void display()

{

cout<<eno<<"\t"<<name<<"\t"<<des<<"\t"<<bp<<"\t"<<hra<<"\t"<<da<<"\t"<<pf<<"\t"<<np<<"\n";

}

};

void main()

{

int i,n; char

ch; salary

s[10];

clrscr();

cout<<"Enter the number of employee:";

cin>>n;

for(i=0;i<n;i++)

{

s[i].get();

s[i].get1();

s[i].calculate();

}

cout<<"\ne_no \t e_name\t des \t bp \t hra \t da \t pf \t np \n";

for(i=0;i<n;i++)

{

s[i].display();

}

getch();

}

Program Output:

Enter the Number of employee: 10

Enter the employee No: 570

Enter the employee Name: Ram

Enter the designation: AP

Enter the basic pay: 25000

Enter the HR allowance: 8000

Enter the Dearness allowance: 2500

Enter the profitability Fund: 1300

E.No E.name des BP HRA DA PF NP

570 Ram AP 25000 8000 2500 1300 34200