task 1( oop lab 2) 3rd sem

#include<bits/stdc++.h>
using namespace std;
class Calculator
{
private:
    int a;
public:
    Calculator():a(0)
    {

    }
    Calculator(int value):a(value)
    {

    }
    int getValue()
    {
        return a;
    }
    void setValue(int value)
    {
        a=value;
    }
    void add(int value)
    {
        a=a+value;
    }
    void subtract(int value)
    {
        a=a-value;
    }
    void multiply(int value)
    {
        a=a*value;
    }
    void divideBy(int value)
    {
        a=a/value;
    }
    void clear()
    {
        a=0;
    }

};
int main()
{
    Calculator c1;
    Calculator c2(10);

    cout<<"My first value is "<<c1.getValue()<<endl;
    cout<<"My second value is "<<c2.getValue()<<endl;
    c1.setValue(20);
    cout<<"My modified first value is "<<c1.getValue()<<endl;
    c1.add(10);
    cout<<"10 added to first value "<<c1.getValue()<<endl;
    c1.subtract(5);
    cout<<"5 subtracted from first value "<<c1.getValue()<<endl;
    c1.multiply(5);
    cout<<"5 multiplied to first value "<<c1.getValue()<<endl;
    c1.divideBy(5);
    cout<<"First value is divided by 5 "<<c1.getValue()<<endl;

}