I am attempting to build an array of batting averages from a .txt file, but most of the resources I am finding online to assist in how to work this out either work with text in the following format:
1 2 3 4 5
2 3 4 5 6
etc.
... or in the following format:
1, 2
3, 4
etc.
Unfortunately, my text file is in the following format, and changing the format is not an option. Each odd line number denotes a player, with the following even line number being their average at bat in that instance (just information for context):
1
2
3
4
Using this file, I want to assign the odd numbers to the index of the array, and then populate the even numbers as values, calculating them as I go. I believe that I can parse out how to accomplish the calculations, I just cannot ascertain how to grab the data nor associate the odd numbers with array indexes.
Code as follows. File is to be specified by user:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
static string FileName()
{
string doc = Console.ReadLine();
return doc;
}
static void Main(string[] args)
{
try
{
Console.Write("Where is the data file for batting averages located? ");
string doc = FileName();
StreamReader reader = new StreamReader(doc);
string avg = reader.ReadToEnd();
reader.Close();
}
catch (System.IO.FileNotFoundException)
{
Console.WriteLine("The file can not be found.");
}
catch (System.FormatException)
{
Console.WriteLine("Invalid file.");
}
catch (System.ArgumentException)
{
Console.WriteLine("Enter a valid file name.");
}
catch (System.Exception exc)
{
Console.WriteLine(exc.Message);
}
}
Any assistance would be welcome. Please keep in mind I am a student and still learning the earliest parts of C#, so any truly advanced techniques are probably going to be lost on me.
You can read the Text file Line by line (or use System.IO.File.ReadAllLines - to get a string[] - Link ). Now Odd/Even indices can be read and processed per your wish.
Tip: Your text file format is basic and error prone.
You can do something like this:
var lines = File.ReadAllLines(FileName());
for (int i = 0; i < lines.Length; i += 2)
{
Console.WriteLine($"Player Name: {lines[i]}");
Console.WriteLine($"Player Average: {lines[i + 1]}");
}
After working late into the night yesterday, I came up with code that resolved my issue:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
class Program
{
static void Main(string[] args)
{
Console.Write("Where is the data file for batting averages located? ");
string doc = Console.ReadLine();
int[] avg = new int[9];
int val1=0, val2=0, val3=0, val4=0, val5=0, val6=0, val7=0, val8=0, val9=0;
int cnt1=0, cnt2=0, cnt3=0, cnt4=0, cnt5=0, cnt6=0, cnt7=0, cnt8=0, cnt9=0;
try
{
StreamReader reader = new StreamReader(doc);
var lines = File.ReadAllLines(doc);
int[] index = Array.ConvertAll(lines, int.Parse);
//Console.WriteLine(lines); //displays contents of text file
reader.Close();
for (int i = 0; i < index.Length; i += 2)
{
switch (index[i])
{
case 1:
cnt1++;
val1 = val1 + index[i + 1];
break;
case 2:
cnt2++;
val2 = val2 + index[i + 1];
break;
case 3:
cnt3++;
val3 = val3 + index[i + 1];
break;
case 4:
cnt4++;
val4 = val4 + index[i + 1];
break;
case 5:
cnt5++;
val5 = val5 + index[i + 1];
break;
case 6:
cnt6++;
val6 = val6 + index[i + 1];
break;
case 7:
cnt7++;
val7 = val7 + index[i + 1];
break;
case 8:
cnt8++;
val8 = val8 + index[i + 1];
break;
case 9:
cnt9++;
val9 = val9 + index[i + 1];
break;
default:
break;
}
}
int total = cnt1 + cnt2 + cnt3 + cnt4 + cnt5 + cnt6 + cnt7 + cnt8 + cnt9;
decimal avg1 = Convert.ToDecimal(val1) / Convert.ToDecimal(cnt1);
decimal avg2 = Convert.ToDecimal(val2) / Convert.ToDecimal(cnt2);
decimal avg3 = Convert.ToDecimal(val3) / Convert.ToDecimal(cnt3);
decimal avg4 = Convert.ToDecimal(val4) / Convert.ToDecimal(cnt4);
decimal avg5 = Convert.ToDecimal(val5) / Convert.ToDecimal(cnt5);
decimal avg6 = Convert.ToDecimal(val6) / Convert.ToDecimal(cnt6);
decimal avg7 = Convert.ToDecimal(val7) / Convert.ToDecimal(cnt7);
decimal avg8 = Convert.ToDecimal(val8) / Convert.ToDecimal(cnt8);
decimal avg9 = Convert.ToDecimal(val9) / Convert.ToDecimal(cnt9);
Console.WriteLine("{0} pairs of data read.", total);
Console.WriteLine("The batting average for:");
Console.WriteLine(" position 1 is {0}", Math.Round(avg1, 4));
Console.WriteLine(" position 2 is {0}", Math.Round(avg2, 4));
Console.WriteLine(" position 3 is {0}", Math.Round(avg3, 4));
Console.WriteLine(" position 4 is {0}", Math.Round(avg4, 4));
Console.WriteLine(" position 5 is {0}", Math.Round(avg5, 4));
Console.WriteLine(" position 6 is {0}", Math.Round(avg6, 4));
Console.WriteLine(" position 7 is {0}", Math.Round(avg7, 4));
Console.WriteLine(" position 8 is {0}", Math.Round(avg8, 4));
Console.WriteLine(" position 9 is {0}", Math.Round(avg9, 4));
}
catch (System.IO.FileNotFoundException) //file not present
{
Console.WriteLine("The file {0} was not found.", doc);
}
catch (System.IndexOutOfRangeException)
{
Console.WriteLine("Incomplete data pairs. Please re-check your data entries and retry.");
}
catch (System.FormatException) //bad data
{
Console.WriteLine("Invalid file.");
}
catch (System.ArgumentException) //null entry
{
Console.WriteLine("Make sure you enter a valid file name.");
}
catch (System.Exception exc) //any other exceptions
{
Console.WriteLine(exc.Message);
}
}
}
}
I know parts of it are a bit clunky, but as long as it works, I can learn more about condensing the information as I attend more classes. Thank you both for your assistance.
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.