class_sep_func.cpp

#include <iostream>
using namespace std;

class rectangle{
    private:
        int length;
        int breadth;

    public:
        rectangle();
        rectangle(int l, int b);
        rectangle(rectangle &r);
        int getlength() { return length; }
        int getbreadth(){return breadth;}
        void setlength(int l);
        void setbreadth(int b);
        int area();
        int perimeter();
        bool isSquare();
        ~rectangle(); //destructor
};

int main()
{
    rectangle r1(20, 20);
    cout<<"Area "<<r1.area()<<endl;
    if(r1.isSquare())
        cout << "yea square"<<endl;
}
rectangle :: rectangle(){
    length = 1;
    breadth = 1;
}
rectangle ::rectangle(int l,int b){
    length = l;
    breadth = b;
}
rectangle ::rectangle(rectangle &r){
    length = r.length;
    breadth = r.breadth;
}
void rectangle ::setlength(int l){
    length = l;
}
void rectangle ::setbreadth(int b){
    breadth = b;
}
int rectangle ::area(){
    return length*breadth;
}
int rectangle ::perimeter(){
    return 2*(length+breadth);
}
bool rectangle ::isSquare(){
    return length ==breadth;
}
rectangle :: ~rectangle(){
    cout << "Rectangle Destroyed";
}