I have this program,all i am stuck with is how to check if my file League.bin exits and if it is exists need to de-serialized into ArrayList and if it does exist user should initialize 4 teams,which i tried in FootballMethod(),plus i tried to do in the main top check for a existing file.And after deserialize in to League.bin.The program is complaining for foreach() in main.Something went wrong with my logic.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Collections;
using System.IO;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
namespace PremierLeague
{
[Serializable]
class FootballTeam
{
private string name;
private int gamesPlayed;
private int goalsFor;
private int goalsAgainst;
private int points;
public FootballTeam(string name)
{
this.name = name;
}
public FootballTeam(string name, int gamesPlayed, int goalsFor, int goalsAgainst, int points)
{
this.name = name;
this.gamesPlayed = gamesPlayed;
this.goalsFor = goalsFor;
this.goalsAgainst = goalsAgainst;
this.points = points;
}
public FootballTeam()
{
Console.WriteLine("Enter 4 teams names:");
string names = Console.ReadLine();
ArrayList teamNames = new ArrayList();
teamNames.Add(new FootballTeam(names));
}
public void Display()
{
Console.WriteLine("{0,20} {1,10} {2,10} {3,10} {4,10}",
name, gamesPlayed, goalsFor, goalsAgainst, points);
}
public void DeductPoints(int numPoints)
{
this.points -= numPoints;
}
public void UpdateOnResult(int goalsFor, int goalsAgainst)
{
gamesPlayed++;
this.goalsFor += goalsFor;
this.goalsAgainst += goalsAgainst;
if (goalsFor > goalsAgainst)
points += 3;
else if (goalsFor == goalsAgainst)
points++;
}
public string Name
{
get
{
return name;
}
}
public int GamesPlayed
{
get
{
return gamesPlayed;
}
}
public int GoalsFor
{
get
{
return goalsFor;
}
}
public int GoalsAgainst
{
get
{
return goalsAgainst;
}
}
public int Points
{
get
{
return points;
}
}
}
}
Here is the main
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Collections;
using System.IO;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
namespace PremierLeague
{
class Program
{
static ArrayList table = new ArrayList();
private static BinaryFormatter bformatter;
static void Main(string[] args)
{
int option;
do
{
option = ShowMenu();
switch (option)
{
case 1:
DisplayTable();
break;
case 2:
EnterResult();
break;
case 3:
DeductPoints();
break;
case 4:
break;
}
} while (option != 4);
}
//ShowMenu method
static int ShowMenu()
{
if (File.Exists("League.bin"))
{
Console.WriteLine("file exists");
bformatter = new BinaryFormatter();
FileStream footballFile = new FileStream("League.bin", FileMode.Open, FileAccess.Read);
ArrayList leagueInfo = bformatter.Deserialize(footballFile) as ArrayList;
Console.WriteLine("Retrieved List Contents");
foreach (FootballTeam li in footballFile)
Console.WriteLine("{0} {1} {2} {3} {4}", li.Name, li.GamesPlayed,li.GoalsFor,li.GoalsAgainst,li.Points);
Console.WriteLine("\n\n");
Console.ReadLine();
}
else
{
FootballTeam();
}
Console.WriteLine("\n\t1. Display table");
Console.WriteLine("\t2. Enter result");
Console.WriteLine("\t3. Deduct points");
Console.WriteLine("\t4. Quit");
Console.Write("\n Option ? ");
int option = int.Parse(Console.ReadLine());
return option;
}
private static void FootballTeam()
{
throw new NotImplementedException();
}//end of ShowMenu method
//DisplayTable method
static void DisplayTable()
{
Console.WriteLine("\n");
Console.WriteLine("{0,20} {1,15} {2,10} {3,10} {4,10}",
"Team", "Games Played", "Goals For", "Against", "Points");
Console.WriteLine("{0,20} {1,15} {2,10} {3,10} {4,10}",
"----", "------------", "---------", "-------", "------");
foreach (FootballTeam team in table)
team.Display();
}
static void EnterResult()
{
Console.Write("\nEnter result - Home team : ");
string homeTeam = Console.ReadLine();
Console.Write("Enter result - Home score : ");
int homeScore = int.Parse(Console.ReadLine());
Console.Write("\nEnter result: Away team : ");
string awayTeam = Console.ReadLine();
Console.Write("Enter result: Away score : ");
int awayScore = int.Parse(Console.ReadLine());
foreach (FootballTeam team in table)
{
if (team.Name == homeTeam)
{
team.UpdateOnResult(homeScore, awayScore);
}
if (team.Name == awayTeam)
{
team.UpdateOnResult(awayScore, homeScore);
}
}
}
static void DeductPoints()
{
string name;
int points;
Console.Write("\nEnter team name: ");
name = Console.ReadLine();
Console.Write("Enter points to deduct: ");
points = int.Parse(Console.ReadLine());
foreach (FootballTeam team in table)
{
if (team.Name == name)
{
team.DeductPoints(points);
break;
}
}
}//end of DeductPoints method
}
}
