why?
package pl.codegym.task.task19.task1907;
/*
Liczenie słów
*/
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.*;
import java.util.regex.Pattern;
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
FileReader fileReader = new FileReader(bufferedReader.readLine());
bufferedReader.close();
Scanner scanner = new Scanner(fileReader);
int count = 0;
while (scanner.hasNextLine()) {
String data = scanner.nextLine();
String[] split = data.split("\\W");
for (int i = 0; i < split.length; i++) {
if (split[i].equalsIgnoreCase("świat"))
count++;
}
}
fileReader.close();
scanner.close();
System.out.println(count);
}
}