easy fix

Ok, classes are confusing me alot. here some code, and I will give you the error. I'm not entirely sure what is wrong with it, but maybe you can help.

Code:

---

#include<iostream>
#include<fstream>
#include<string>
#include<cstdlib>
using namespace std;


class employee
{
public:
  string lname;
  string fname;
  string address;
  string city;
  string state;
  string zip;
  char hos;
  int payrate;
  int hours;
  int dependents;
  int gpay;
  int fed;
  int state1;
  int social;
  int net;
  int compute(int payrate, int hours, int dependents, int gpay, int fed, int state1, int social, int net, char hos);
};
employee::employee();
int main()
{
  char in[20];
  char out[20];
  cout<<"Enter the name of the file you want to write to.";
  cin.get(out, 20);
  cin.ignore(80, '\n');
  cout<<"Enter the name of the file you want to read from.";
  cin.get(in, 20);
  cin.ignore(80, '\n');
  ifstream infile;
  infile.open(in);
  ofstream outfile;
  outfile.open(out);
  employee::compute(int payrate, int hours, int dependents, int gpay, int fed, int state1, int social, int net, char hos);
  infile.close();
  outfile.close();
  return 0;
}

---

(49) : error C2059: syntax error : ')'
(49) : error C2660: 'compute' : function does not take 0 parameters
(49) : error C2144: syntax error : missing ')' before type 'int'

Learn the difference between prototyping a function (again) and calling it