wordcounter Program

• A Program that can count all the occurrence of all the words in a text file.
• It can also find the frequency of a given word in the Program.

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

class wordCounter {

String readFile(String fileName) throws IOException {
   BufferedReader br = new BufferedReader(new FileReader(fileName));
   try {
       StringBuilder sb = new StringBuilder();
       String line = br.readLine();

       while (line != null) {
           sb.append(line);
           sb.append(" ");
           line = br.readLine();
       }
       return sb.toString();
   } finally {
       br.close();
   }
}

String[] sort(String[] arr)
{
String tmp;
for (int i = 0;i < arr.length;i++)
{
 tmp = arr[i];
 for (int j = 0;j < arr.length;j++)
 {
   if (i == j) continue; // Same place.. Nothing to do.
   int x = tmp.compareTo(arr[j]); // Bigger smaller?!
   if (x < 0) // Need to swap.
   {
     /* Swaping proccess... */
     tmp = arr[j];
     arr[j] = arr[i];
     arr[i] = tmp;
   }
 }
}
return arr;
}

void countAllWords(String filename) throws IOException
{
String fileContent = readFile(filename);
String[] arr = fileContent.split(" ");
String[] sortedArray = sort(arr);

int counter = 0;

for (int i=0; i<sortedArray.length; i++)
{
counter = 0;
for (int j=0; j<sortedArray.length; j++)
{
if (sortedArray[i].equals(arr[j]))
{counter = counter + 1;}
else
continue;
}

if (i == 0)
System.out.println(sortedArray[i] + " : " + counter);
else
{
if (sortedArray[i].equals(sortedArray[i-1]))
continue;
else
System.out.println(sortedArray[i] + " : " + counter);
}
}
}

void countWords(String filename, String word) throws IOException
{
String fileContent = readFile(filename);
String[] arr = fileContent.split(" ");
//String[] sortedArray = sort(arr);

int counter = 0;

for (int i=0; i<arr.length; i++)
{
if (arr[i].equals(word))
{counter = counter + 1;}
else
continue;
}
System.out.println(counter);

}
}

public class wordCount{

public static void main (String args[]) throws IOException
{
wordCounter wordcounter = new wordCounter();
wordcounter.countAllWords("input.txt");
//wordcounter.countWords("input.txt", "Socket");
}
}

Following is the content of my input.txt:
Socket Class Methods:
The java.net.Socket class represents the socket that both the client and server use to
communicate with each other. The client obtains a Socket object by instantiating one,
whereas the server obtains a Socket object from the return value of the accept()
method


Running the program will produce following output

Changing above program a little-bit to find out the string with highest frequency and the frequency value: void countAllWords(String filename) throws IOException{String fileContent = readFile(filename);String[] arr = fileContent.split(" ");String[] sortedArray = sort(arr);int counter = 0;int maxcounter = counter;String maxString = null;for (int i=0; i<sortedArray.length; i++){ counter = 0;for (int j=0; j<sortedArray.length; j++){if (sortedArray[i].equals(arr[j])){counter = counter + 1;}elsecontinue; if (counter > maxcounter){maxcounter = counter;maxString = sortedArray[i];}} /*if (i == 0)System.out.println(sortedArray[i] + " : " + counter);else{if (sortedArray[i].equals(sortedArray[i-1]))continue;elseSystem.out.println(sortedArray[i] + " : " + counter);}*/}System.out.println("Highest Frequency = " + maxcounter);System.out.println("Highest Frequency String = " + maxString);}