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07.rectangle_class.cpp
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07.rectangle_class.cpp
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#include<iostream>
using namespace std;
class rectangle{
//data members
//these are private by default
int l,b;
public:
//methods
//default constructor
rectangle();
//parameterized constructor
rectangle(int x,int y);
//facilitators
int area();
int perimeter();
//getters - accessors
int get_length();
int get_breadth();
//setters - mutators
void set_length(int x);
void set_breadth(int y);
//destructor
~rectangle();
};
rectangle::rectangle(){
l=0;
b=0;
}
rectangle::rectangle(int x,int y){
l=x;
b=y;
}
int rectangle::area(){
return l*b;
}
int rectangle::perimeter(){
return 2*(l+b);
}
int rectangle::get_breadth(){
return b;
}
int rectangle::get_length(){
return l;
}
void rectangle::set_length(int x){
l=x;
}
void rectangle::set_breadth(int y){
b=y;
}
//if we have any dynamic memory, can free that thing here; delete arr[]; free(arr)
rectangle::~rectangle(){}
int main(){
rectangle r1;
rectangle r2(10,5);
cout<<"Area of r1: "<<r1.area()<<endl;
cout<<"Perimeter of r1: "<<r1.perimeter()<<endl;
cout<<"current length of r1: "<<r1.get_length()<<" \nand current breadth is: "<<r1.get_breadth()<<endl;
int a,b;
cout<<"Enter New length and breadth: ";
cin>>a>>b;
r1.set_length(a);
r1.set_breadth(b);
cout<<"Now\n";
cout<<"current length of r1: "<<r1.get_length()<<" \nand current breadth is: "<<r1.get_breadth()<<endl;
cout<<"Area of r1: "<<r1.area()<<endl;
cout<<"Perimeter of r1: "<<r1.perimeter()<<endl;
return 0;
}