using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

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namespace RepeatedWordCount{

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public class StringProgram{

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public static void Main(String[] args){

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string word;

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Console.WriteLine("Enter the words______");

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word=Console.ReadLine();

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//var value=word.Split('.', '?', '!', ' ', ';', ':', ',' ); // split the string when using 'space'

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string[] value = word.Split(new char[] { '.', '?', '!', ' ', ';', ':', ',' },StringSplitOptions.RemoveEmptyEntries);

Dictionary<string, int> RepeatedWord=new Dictionary<string,int>();

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for(int i=0; i< value.Length;i++)

{

if(RepeatedWord.ContainsKey(value[i]))

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{

int data=RepeatedWord[value[i]];

RepeatedWord[value[i]]=data+1;

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}else{

RepeatedWord.Add(value[i],1);

}

}

Console.WriteLine("RepeatedWords and their Counts are....");

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foreach(KeyValuePair<string,int> k in RepeatedWord){

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Console.WriteLine("ReapeatedString ="+k.Key+" ,Counts ="+ k.Value);

}

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int l=0, wrd=1;

// total no. of characters in string

foreach(char chr in word)

{

l += 1;

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}

Console.Write("\n\n");

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Console.Write("Length of the Characters in the string is : {0}\n\n", l);// total no. of characters

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// For Reverse the chracters in string

l = word.Length - 1;

Console.Write("The characters of the string in reverse are : \n");

while (l >= 0)

{

Console.Write("{0} ", word[l]);

l--;

}

Console.Write("\n\n");

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int words = RepeatedWord.Count;

Console.WriteLine("Total words are :"+ words );

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Console.WriteLine("excepted words");

string searchTerm=Console.ReadLine();

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var matchQuery = from word1 in value

where word1.Equals(searchTerm, StringComparison.InvariantCultureIgnoreCase)

select word1;

int wordCount = matchQuery.Count();

Console.WriteLine("{0} occurrences(s) of the search term \"{1}\" were found.", wordCount, searchTerm);

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int index = word.IndexOf(searchTerm);

if(index<0)

Console.WriteLine("The substring no found in the given string \n");

else

Console.WriteLine("Found '{0}' in '{1}' at position {2}",

searchTerm, word, index);

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}

}

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}

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