Unordered Linear Search in CPP

          I hope you have read this page: http://terminalcoders.blogspot.com/2014/07/searching.html. If you didn't read it, please read it before using the source code.

#include <iostream>
using namespace std;
class UOLS
{
    int list[256], n, i, k;
    public:
        void read()
        {
            cout<<"Enter the number of items: ";
            cin>>n;
            cout<<"Enter "<<n<<" Items in ascending order: ";
            for(i=0;i<n;i++)
            {
                cin>>list[i];
            }
            cout<<"Enter key to search: ";
            cin>>k;
            o_l_s();
        }
        void o_l_s()
        {
            i=0;
            while(i<n && k != list[i])
            {
                i++;
            }
            if(list[i]==k)
            {
                cout<<"Key has found!!!";
            }
            else
            {
                cout<<"Key hasn't found!!!";
            }
        }
};
int main()
{
    UOLS o;
    o.read();
}