Calculating Average Using OOP (C++)

# include<iostream> #include<conio.h> using namespace std; class array{ float *f_a; public: array(int); ~array(); void getdata(int); float average(int); }; array::array(int k){ f_a=new float[k]; if(!f_a){ cout<<"Allocation failure."<<endl; } } array::~array(){ delete[]f_a; } void array::getdata(int l){ cout<<"Enter "<<l<<" elements: "; for(int i=0; i<l;i++){ cin>>f_a[i]; } } float array::average(int m){ float sum; for(int j=0;j<m;j++){ sum+=f_a[j]; } return(sum/m); } int main(){ int n; cout<<"Number of elements: "; cin>>n; array f(n); f.getdata(n); cout<<"The average is: "<<f.average(n)<<endl; return 0; }