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Java program to Count Number of Duplicate Words in String

Deepika Sahu answered on January 26, 2020 Popularity 7/10 Helpfulness 2/10

answer Java program to Count Number of Duplicate Words in String

related counting repeated characters in a string in java

Java program to Count Number of Duplicate Words in String

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import java.util.HashMap;

import java.util.Map;
import java.util.Set;

/**
 * Java program to count number of duplicate words in given string
 * @author javaguides.net
 *
 */
public class DuplicateWordsInString {
    private static void duplicateWords(String inputString) {
        // Splitting inputString into words
        final String[] words = inputString.split(" ");

        // Creating one HashMap with words as key and their count as value
        final Map < String, Integer > wordCount = new HashMap < String, Integer > ();

        // Checking each word
        for (String word: words) {
            // whether it is present in wordCount
            if (wordCount.containsKey(word)) {
                // If it is present, incrementing it's count by 1
                wordCount.put(word, wordCount.get(word) + 1);
            } else {
                // If it is not present, put that word into wordCount with 1 as
                // it's value
                wordCount.put(word, 1);
            }
        }

        // Extracting all keys of wordCount
        final Set < String > wordsInString = wordCount.keySet();

        // Iterating through all words in wordCount

        for (String word: wordsInString) {
            // if word count is greater than 1

            if (wordCount.get(word) > 1) {
                // Printing that word and it's count
                System.out.println(word + " : " + wordCount.get(word));
            }
        }
    }

    public static void main(String[] args) {

        duplicateWords("java guides java");

        duplicateWords("Java is java again java");

        duplicateWords("Super Man Bat Man Spider Man");
    }
}

Popularity 7/10 Helpfulness 2/10 Language java

Source: www.javaguides.net

Tags: count java string words

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Contributed on Dec 17 2022

Deepika Sahu

0 Answers Avg Quality 2/10

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counting repeated characters in a string in java

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String s="mmababctamantlslwgikl";
    int distinct = 0 ;

    while(s.length()>0){
        
        for (int j = 0; j < s.length(); j++) {

            if(s.charAt(0)==s.charAt(j))
            {
                distinct++;

            }
        }   
        
        System.out.println(s.charAt(0)+"--"+distinct);
        String d=String.valueOf(s.charAt(0)).trim();
        s=s.replaceAll(d,"");
        distinct = 0;

        
    }

Popularity 9/10 Helpfulness 5/10 Language java

Source: Grepper

Tags: java

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Contributed on Mar 31 2022

Zhouri

0 Answers Avg Quality 2/10

counting repeated characters in a string in java

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 void Findrepeter(){
    String s="mmababctamantlslmag";
    int distinct = 0 ;

    for (int i = 0; i < s.length(); i++) {

        for (int j = 0; j < s.length(); j++) {

            if(s.charAt(i)==s.charAt(j))
            {
                distinct++;

            }
        }   
        System.out.println(s.charAt(i)+"--"+distinct);
        String d=String.valueOf(s.charAt(i)).trim();
        s=s.replaceAll(d,"");
        distinct = 0;

    }

}

Popularity 10/10 Helpfulness 4/10 Language java

Source: stackoverflow.com

Tags: java

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Contributed on Jan 26 2020

Clumsy Cockroach

0 Answers Avg Quality 2/10

counting repeated characters in a string in java

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import java.io.*;
public class CountChar 
{

    public static void main(String[] args) throws IOException
    {
      String ch;
      BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
      System.out.print("Enter the Statement:");
      ch=br.readLine();
      int count=0,len=0;
        do
        {  
          try
          {
          char name[]=ch.toCharArray();
              len=name.length;
              count=0;
              for(int j=0;j<len;j++)
               {
                  if((name[0]==name[j])&&((name[0]>=65&&name[0]<=91)||(name[0]>=97&&name[0]<=123))) 
                      count++;
               }
              if(count!=0)
                System.out.println(name[0]+" "+count+" Times");
              ch=ch.replace(""+name[0],"");          
          }
          catch(Exception ex){}
        }
        while(len!=1);
   }

}

Popularity 10/10 Helpfulness 3/10 Language java

Source: stackoverflow.com

Tags: java

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Contributed on Jan 26 2020

Clumsy Cockroach

0 Answers Avg Quality 2/10

Java program to Count Number of Duplicate Words in String

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Java program to Count Number of Duplicate Words in String

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