Hackerrank Inheritance Introduction Solution
Poor Man
- Published
- Updated
- Reading time
- 2 min read
- Length
- 346 words
One of the important topics of Object Oriented Programming is Inheritance. Inheritance allows us to define a class in terms of another class, which allows us in the reusability of the code.Check out the code below:
Text
class Triangle{
public:
void triangle(){
cout<<"I am a triangle\n";
}
};The class Triangle has a function called triangle(). Now we create a class derived from the base class Triangle called Isosceles.
Text
class Isosceles : public Triangle{
public:
void isosceles(){
cout<<"I am an isosceles triangle\n";
}
};Now we can create a derived class object and use it to access the functions of the base class.
Text
int main(){
Isosceles isc;
isc.isosceles();
isc.triangle();
return 0;
}This code will print:
Text
I am an isosceles triangle
I am a triangleNow write a function in Isosceles class such that the output is as given below.
Sample Output
Text
I am an isosceles triangle
In an isosceles triangle two sides are equal
I am a triangleSolution in cpp#
Approach 1.
Python
#include <iostream>
using namespace std;
class Triangle{
public:
void triangle(){
cout<<"I am a triangle\n";
}
};
class Isosceles : public Triangle{
public:
void isosceles(){
cout<<"I am an isosceles triangle\n";
}
void description(){
cout<<"In an isosceles triangle two sides are equal\n";
}
};
int main(){
Isosceles isc;
isc.isosceles();
isc.description();
isc.triangle();
return 0;
}Approach 2.
Python
#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;
class Triangle{
public:
void triangle(){
cout<<"I am a triangle\n";
}
};
class Isosceles : public Triangle{
public:
void isosceles(){
cout<<"I am an isosceles triangle\n";
}
void description(){
cout<<"In an isosceles triangle two sides are equal\n";
}
};
int main(){
Isosceles isc;
isc.isosceles();
isc.description();
isc.triangle();
return 0;
}Approach 3.
Python
#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;
class Triangle{
public:
void triangle(){
cout<<"I am a triangle\n";
}
};
class Isosceles : public Triangle{
public:
void isosceles(){
cout<<"I am an isosceles triangle\n";
}
void description() {
cout<<"In an isosceles triangle two sides are equal\n";
}
};
int main(){
Isosceles isc;
isc.isosceles();
isc.description();
isc.triangle();
return 0;
}
