Teacher Salary Program in C++

 #include <iostream>

using namespace std;

class teacher

{

    char name[20];

    char subject[20];

    float basic, da, hra;

public:

    void read_data(int i);

    void display_data(int i);

    int calculate();

};

int teacher ::calculate()

{

    if (basic <= 10000)

    {

        da = basic * 0.8;

        hra = basic * 0.2;

    }

    else if (basic <= 20000)

    {

        da = basic * 0.95;

        hra = basic * 0.25;

    }

    else

    {

        da = basic * 0.95;

        hra = basic * 0.25;

    }

    return basic + hra + da;

}

void teacher :: read_data(int i)

{

        //cout<<"\n\n***Enter Teacher"<<i<<"Details***";

       

        cout << "Enter the name of the " << i << " Teacher: ";

        cin >> name;

        cout << "Enter the Subject of the " << i << " Teacher: ";

        cin >> subject;

        cout << "Enter the basic salary of the " << i << " Teacher: ";

        cin >> basic;

   

}

void teacher :: display_data(int i)

{

   

    int salary = calculate();

   

        cout << i << " Name: "<<name<<endl;

       

        cout <<i << " Subject: "<<subject<<endl;

   

        cout<< i << " Salary: "<<salary<<endl;

   

   

}

int main()

{

    teacher c[10];

    int Not,i;

    cout << "How many teacher's data You want to enter: ";

    cin>>Not;

    for ( i = 0; i <Not ; i++)

    {

        c[i].read_data(i+1);

        cout<<endl;

    }

    for ( i = 0; i <Not ; i++)

    {

        c[i].display_data(i+1);

        cout<<endl;

    }

   

   

    return 0;

}