从文本文件中获取所有单词（Java）

Question

I am trying to display all words in a file that can be found horizontally and vertically and I am trying print the location of the first character of each word (row and column).

I got it to display every word horizontally but not vertically.

This is the code I used so far

public class WordFinder {
    public static final String WORD_FILE = "words.txt";
    public static void find(){
        try {
            File file = new File(WORD_FILE);
            Scanner scanner = new Scanner(file);
            while (scanner.hasNext() == true) {
                String s = scanner.next();
                System.out.println(s);
            }
            scanner.close();
        } catch (FileNotFoundException e) {
            System.out.println("File not found.");
    }
}

It should search the file horizontally and vertically to find words. Once it finds a word it should display the location of the first letter of the word (EG grammar: row 8, position 1 ) At the moment it just prints all horizontal words.

Answer 1

You have to count the line number and position of the words while iterating. Therefore you should use scanner.hasNextLine() and scanner.nextLine() . After that you can split the line:

int lineNumber = 0;
while (scanner.hasNextLine()) {
    String line = scanner.nextLine();
    int positionNumber = 0;
    for (String word : line.split("\\s")) {
        if (!word.isEmpty())
            System.out.println(word + ": line " + (lineNumber + 1) + ", position " + (positionNumber + 1));
        positionNumber += word.length() + 1;
    }
    lineNumber++;
}

This splits the line on all whitespaces ( \\\\s ) and handle double whitespaces (empty words) with if (!word.isEmpty()) .