Thread: Don't Understand Class

I remember doing very simple classes in c++ before but I'm having a lot of trouble understanding this use of class. One that reads from file into an array. I would ask my teacher but he just makes it sound ever more confusing and the book that I'm using doesn't even cover how to use a class this way.

Its suppose to read a city and the average temperature for each city.

Here's a piece of the code he wants us to use:

PHP Code:

#ifndef _ASSIGNMENT_8_CPP_
#define _ASSIGNMENT_8_CPP_

#include <iostream>
#include <fstream>
#include <string>
#include <iomanip>
#include <cstdlib>

using namespace std;

class DATA {
private:
    char city[20][25];
    int temps[20];
    int HIGH; 
    int LOW; 
    float AVE; 
    char HIGH_city[25]; 
    char LOW_city[25];
public: 
    DATA(); 
    void FileRead(char fname[25]); 
    /* I was taught to do it like "void FileRead(char);". Why is it that way?*/
    void FindMax(); 
    void FindMin(); 
    void FindAve(); 
    void ShowData();
    void Print();
};

DATA::DATA()
{
         //Isn't there suppose to be some code in here?
}

void DATA::FileRead(char fname[25])//Don't understand why "fname" is an array of char
{
    ifstream infile(fname);
    int i = 0, size = 0;
    char temp[32];
    
    while(!infile.eof())
    {
        infile.getline(temp, 30, ' ');
        strcpy(city[i],temp);//Gives me error: " deprecated conversion from string constant to ‘char*’ "
        
        infile.getline(temp, 30);
        temps[i] = atoi(temp);
        
        i++;
        size++;
    }
      /*How am I suppose to use this outside of this function?*/

    infile.close();
}