Why is it not working ?

Question about the task

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Determine why the program found more instances of the word "world " than exist in the file.

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()) {
            stringBuilder.append((char) fileReader.read());
        }
        fileReader.close();
        String text = stringBuilder.toString().toLowerCase();
        boolean endsWithWorld = text.endsWith("world");
        System.out.println(text.split("world").length - (endsWithWorld ? 0 : 1));
    }
}

Read a file name from the console.
The file contains words separated by punctuation marks.
Output to the console the number of times the word "world" appears in the file.
Close the streams.

Requirements:

The program must read the file name from the console (use BufferedReader).
The BufferedReader used for reading input from the console must be closed after use.
The program must read the file's contents (use the FileReader constructor that takes a String argument).
The file input stream (FileReader) must be closed.
The program must output to the console the number of times the word "world" appears in the file.

package com.codegym.task.task19.task1907; /* Counting words */ import java.io.*; 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()) { stringBuilder.append((char) fileReader.read()); } fileReader.close(); System.out.println(stringBuilder.toString().split("world").length - 2); } }

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Dyrits

Level 22

12 October 2020, 10:39

solution

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();
        stringBuilder.append("#");
        while (fileReader.ready()) {
            stringBuilder.append((char) fileReader.read());
        }
        stringBuilder.append("#");
        fileReader.close();
        String text = stringBuilder.toString().toLowerCase();
        System.out.println(text.split("\\Wworld\\W").length - 1);
    }
}

I got it, my code was getting "world" included in other words.

Dyrits

Level 22

12 October 2020, 10:14

useful

It should be

System.out.println(stringBuilder.toString().split("world").length - 1);

I just tried -2 to see if it changed the outcome. Neither is working.