C++ BASICS

 #include <iostream>

#include <string>

using namespace std;


// f(x) = x^2 + 2

int add(int a, int b)

{

    int c;

    c = a + b;

    return c;

}


class Employee

{

public:

    string name;

    int salary;


    Employee(string n, int s, int sp)

    {

        this->name = n;

        this->salary = s;

        this->secretPassword = sp;

    }


    void printDetails()

    {

        cout << "The name of our first employee is " << this->name << " and his salary is " << this->salary << " Dollars" << endl;

    }


    void getSecretPassword()

    {

        cout<<"The secret password of employee is "<<this->secretPassword;

    }


private:

    int secretPassword;

};



class Programmer : public Employee

{

    public:

        int errors;

        

};


int main()

{

    // cout<<"Hello World Harry"<<endl;

    // cout<<"Next line";

    // int a, b, c;

    // short s23423a=9;

    // cout<<s23423a;


    // camelCase Notation

    // int marksInMaths=83;

    // cout<<"The marks of the student in maths is "<<marksInMaths;


    // string harry = "harry"

    // short a;

    // int b= 89;

    // long c;

    // long long d;

    // float const score = 45.32;

    // double score2 = 45.322;

    // long double score3 = 45.332;

    // score = 34.2;

    // b = 34;

    // cout<<"The score is "<<score;]


    // int a, b;

    // cout<<"Enter first number"<<endl;

    // cin>>a;


    // cout<<"Enter second number"<<endl;

    // cin>>b;


    // cout<<"a + b is "<<a + b<<endl;

    // cout<<"a - b is "<<a - b<<endl;

    // cout<<"a * b is "<<a * b<<endl;

    // cout<<"a / b is "<<(float) a / b<<endl;


    // int age;

    // cout << "Enter your age" << endl;

    // cin >> age;


    // switch (age)

    // {

    // case 12:

    //     cout << "You are 12 years old"<<endl;

    //     break;

    // case 18:

    //     cout << "You are 18 years old"<<endl;

    //     break;


    // default:

    //     cout << "You are neither 12 nor 18 years old";


    // }


    // if(age>150 || age<1)

    // {

    //     cout<<"Invalid age";

    // }


    // else if (age>=18){

    //     cout<<"You can vote";

    // }


    // else

    // {

    //    cout<<"You cannot vote";

    // }


    // int index = 0;

    // while(index<34)

    // {

    //     cout<<"We are at index number "<<index<<endl;

    //     index = index + 1;

    // }


    // do

    // {

    //     cout << "We are at index number " << index << endl;

    //     index = index + 1;

    // } while (index < 33);


    // for (int i = 1; i <= 34; i++)

    // {

    //     cout<<"The value of i is "<<i<<endl;

    // }


    // int a, b;

    // cout<<"Enter first number"<<endl;

    // cin>>a;


    // cout<<"Enter second number"<<endl;

    // cin>>b;

    // cout<<"The function returned "<<add(a,b);


    //     int arr[] = {1, 3, 6};

    // // Array Index   0  1  2

    //     // cout<<arr[1];

    //     int marks[6];


    //     for (int i = 0; i < 6; i++)

    //     {

    //         cout<<"Enter the marks of "<<i<<"th student"<<endl;

    //         cin>>marks[i];

    //     }


    //     for (int i = 0; i < 6; i++)

    //     {

    //         cout<<"Marks of "<<i<<"th student is "<<marks[i]<<endl;

    //     }


    // int arr2d[2][3] = {  {1,2,3},

    //                      {4,5,6}};


    // for (int i = 0; i < 2; i++)

    // {

    //     for (int j = 0; j < 3; j++)

    //     {

    //         cout<<"The value at "<<i<<","<<j<<" is "<<arr2d[i][j]<<endl;

    //     }


    // }


    // int a =343;

    // float b = 87.94;

    // cout<<(float) a/34<<endl;


    // cout<<(int) b;


    // string name = "harry";

    // cout<<"The name is "<<name<<endl;

    // cout<<"The length of name is "<<name.length()<<endl;

    // cout<<"The name is "<<name.substr(1,155)<<endl;

    // cout<<"The name is "<<name.substr(2,3);


    // float a = 34.34;

    // float* ptra;

    // ptra = &a;

    // cout<<"The value of a is "<<a<<endl;

    // cout<<"The value of a is "<<*ptra<<endl;

    // cout<<"The address of a is "<<&a<<endl;

    // cout<<"The address of a is "<<ptra<<endl;


    Employee har("Harry constructor", 344, 324432);

    // har.name = "harry";

    // har.salary = 100;

    har.printDetails();

    har.getSecretPassword();

    // cout<<har.secretPassword;

    // cout<<"The name of our first employee is "<< har.name << " and his salary is "<<har.salary<<" Dollars"<<endl;


    return 0;

}


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