お役に立てれば。それがあなたの問題に取り組む最良の方法かどうかはわかりませんが、それはあなたがいくつかのオプションに慣れるために役立つはずです/ここにいる人の何人かがそれに反対している理由を見てください。あなたがやろうとしていることについてもっと私たちに知らせてくれれば、私たちは別のアプローチをよりよくアドバイスすることができます。
using System;
using System.Collections.Generic;
using System.Linq;
namespace StackOverflow.Demos
{
class Program
{
const string OutputFormat = "{0}: {1}";
public static void Main(string[] args)
{
new Program();
Console.WriteLine("Done");
Console.ReadKey();
}
public Program()
{
SortedDictionary<string, int> dic = new SortedDictionary<string, int>();
dic.Add("a", 1);
dic.Add("b", 2);
dic.Add("d", 2);
dic.Add("c", 1);
dic.Add("e", 1);
dic.Add("f", 3);
dic.Add("g", 4);
dic.Add("h", 2);
dic.Add("i", 2);
OutputByKeyAsc(dic);
OutputByKeyDesc(dic);
OutputByValueFrequency(dic);
}
void OutputByKeyAsc(SortedDictionary<string, int> dic)
{
Console.WriteLine("OutputByKeyAsc");
foreach (string key in dic.Keys)
{
Console.WriteLine(string.Format(OutputFormat, key, dic[key]));
}
}
void OutputByKeyDesc(SortedDictionary<string, int> dic)
{
Console.WriteLine("OutputByKeyDesc");
foreach (string key in dic.Keys.Reverse())
{
Console.WriteLine(string.Format(OutputFormat, key, dic[key]));
}
}
void OutputByValueFrequency(SortedDictionary<string, int> dic)
{
Console.WriteLine("OutputByValueFrequency");
IEnumerable<KeyValuePair<int,int>> values =
(
from sortedItem
in
(
from entry
in dic
group entry
by entry.Value
into result
select new KeyValuePair<int,int>(result.Key , result.Count())
)
orderby sortedItem.Value descending
select sortedItem
).ToArray();
foreach (KeyValuePair<int, int> value in values)
{
foreach (KeyValuePair<string, int> item in dic.Where<KeyValuePair<string, int>>(item => item.Value == value.Key))
{
Console.WriteLine(string.Format(OutputFormat, item.Key, string.Format(OutputFormat, item.Value, value.Value)));
}
}
}
}
}
頑張ってください/これまでのところc＃を楽しんでいることを願っています。
編集
あなたの質問の新しい情報に基づいて、ここにきちんとした解決策の私の試みがあります：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
namespace StackOverflow.Demos
{
class Program
{
const string OutputFormat = "{0}: {1}";
public static void Main(string[] args)
{
new Program("Another great story and another great adventure.");
Console.WriteLine("Done");
Console.ReadKey();
}
public Program(string userInput)
{
//break string into words
IEnumerable<IGrouping<string, int>> words = Regex.Split(userInput, @"\W+").GroupBy(word => word.ToLowerInvariant(), word => 1); //nb converting word to lower case to avoid case sensitive comparisons in grouping - I can keep the original value(s) by replacing "word => 1" with "word => word" if needed
Console.WriteLine("\nWords in alphabetic order");
foreach (IGrouping<string, int> wordInfo in words.OrderBy(word => word.Key))
{
Console.WriteLine(string.Format(OutputFormat, wordInfo.Key,wordInfo.Count()));
}
Console.WriteLine("\nWords in descending alphabetic order");
foreach (IGrouping<string, int> wordInfo in words.OrderByDescending(word => word.Key))
{
Console.WriteLine(string.Format(OutputFormat, wordInfo.Key, wordInfo.Count()));
}
Console.WriteLine("\nWords by frequency (desc)");
foreach (IGrouping<string, int> wordInfo in words.OrderByDescending(word => word.Count()))
{
Console.WriteLine(string.Format(OutputFormat, wordInfo.Key, wordInfo.Count()));
}
}
}
}
編集
これは、クラスの機能とプログラムに保持されている出力を備えた同じコードです。using System; System.Collections.Genericを使用します。System.Linqを使用します。System.Text.RegularExpressionsを使用します。
namespace StackOverflow.Demos
{
class Program
{
const string OutputFormat = "{0}: {1}";
public static void Main(string[] args)
{
new Program("Another great story and another great adventure.");
Console.WriteLine("Done");
Console.ReadKey();
}
public Program(string userInput)
{
WordCounter myWordCounter = new WordCounter(userInput);
Console.WriteLine("\n**Alphabetical**");
foreach (KeyValuePair<string, int> wordInfo in myWordCounter.GetWordCountByWordAlphabeticalDesc())
{
Console.WriteLine(string.Format(OutputFormat,wordInfo.Key, wordInfo.Value));
}
Console.WriteLine("\n**Alphabetical Desc**");
foreach (KeyValuePair<string, int> wordInfo in myWordCounter.GetWordCountByWordAlphabeticalDesc())
{
Console.WriteLine(string.Format(OutputFormat, wordInfo.Key, wordInfo.Value));
}
Console.WriteLine("\n**Frequency Desc**");
foreach (KeyValuePair<string, int> wordInfo in myWordCounter.GetWordCountByFrequency())
{
Console.WriteLine(string.Format(OutputFormat, wordInfo.Key, wordInfo.Value));
}
}
}
public class WordCounter
{
string sentance;
IEnumerable<IGrouping<string, int>> words;
public WordCounter(string sentance)
{
this.sentance = sentance;
GetWords();
}
void GetWords()
{
this.words = Regex.Split(this.sentance, @"\W+").GroupBy(word => word.ToLowerInvariant(), word => 1);
}
public IEnumerable<KeyValuePair<string, int>> GetWordCountByWordAlphabetical()
{
return this.words.OrderBy(word => word.Key).Select(wordInfo => new KeyValuePair<string,int>(wordInfo.Key, wordInfo.Count()));
}
public IEnumerable<KeyValuePair<string, int>> GetWordCountByWordAlphabeticalDesc()
{
return this.words.OrderByDescending(word => word.Key).Select(wordInfo => new KeyValuePair<string, int>(wordInfo.Key, wordInfo.Count()));
}
public IEnumerable<KeyValuePair<string, int>> GetWordCountByFrequency()
{
return this.words.OrderByDescending(word => word.Count()).Select(wordInfo => new KeyValuePair<string, int>(wordInfo.Key, wordInfo.Count()));
}
}
}