BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String fileName = reader.readLine();
reader.close();
FileReader fileReader = new FileReader(fileName);
StringBuilder stringBuilder = new StringBuilder();
while (fileReader.ready()) {
char c =(char) fileReader.read();
stringBuilder.append(c);
}
fileReader.close();
Pattern pattern = Pattern.compile("(\\s|\\W)world(\\s|\\W)");
Matcher matcher = pattern.matcher(stringBuilder);
int c = 0;
while (matcher.find()) {
c++;
}
System.out.println(c);package com.javarush.task.task19.task1907;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/*
Считаем слово
*/
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String fileName = reader.readLine();
reader.close();
FileReader fileReader = new FileReader(fileName);
StringBuilder stringBuilder = new StringBuilder();
while (fileReader.ready()) {
char c =(char) fileReader.read();
stringBuilder.append(c);
}
fileReader.close();
Pattern pattern = Pattern.compile("(\\s|\\W)world(\\s|\\W)");
Matcher matcher = pattern.matcher(stringBuilder);
int c = 0;
while (matcher.find()) {
c++;
}
System.out.println(c);
}
}