Write a program in C++ to print Floyd’s Triangle by using the friend function.
If we declare a function friend int show(T4Tutorials_Floyds_Triangle);as a friend in a class T4Tutorials_Floyds_Trianglethen this function int show (T4Tutorials_Floyds_Triangle a)can access the private and protected members of the class T4Tutorials_Floyds_Triangle.
You must know that a global function can also be declared as a friend function of the class.
Syntax of friend function in C++
class class_name
{
…
friend return_type function_name(arguments);
…
}
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#include<iostream> using namespace std; class T4Tutorials_Floyds_Triangle { public: int i,j,p,q,n; public: int Floyds_Pattern() { cout<<"enter no.of rows"; cin>>n; } friend int show(T4Tutorials_Floyds_Triangle); }; int show (T4Tutorials_Floyds_Triangle a) { for(a.i=1;a.i<=a.n;a.i++) { if(a.i%2==0) { a.p=1; a.q=0; } else { a.p=0; a.q=1; } for(a.j=1;a.j<=a.i;a.j++) { if(a.j%2==0) { cout<<a.p; } else { cout<<a.q; } } cout<<endl; } } int main() { T4Tutorials_Floyds_Triangle a; a.Floyds_Pattern(); show(a); } |
Output
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I welcome to all of you if you want to discuss about any topic. Researchers, teachers and students are allowed to use the content for non commercial offline purpose. Further, You must use the reference of the website, if you want to use the partial content for research purpose.
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