从java中用户输入的n个字符串中提取单词

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.print("请输入字符串的个数：");
        int n = scanner.nextInt();
        scanner.nextLine(); // 消费掉换行符

        System.out.println("请输入" + n + "个字符串：");
        String[] strings = new String[n];
        for (int i = 0; i < n; i++) {
            strings[i] = scanner.nextLine();
        }

        // 调用提取单词的方法
        String[] words = extractWords(strings);

        System.out.println("提取的单词如下：");
        for (String word : words) {
            System.out.println(word);
        }

        scanner.close();
    }

    private static String[] extractWords(String[] strings) {
        // 实现提取单词的逻辑
        // ...
        return words;
    }
}

import java.util.regex.Matcher;
import java.util.regex.Pattern;

private static String[] extractWords(String[] strings) {
    StringBuilder sb = new StringBuilder();

    for (String str : strings) {
        sb.append(str).append(" "); // 拼接所有字符串并以空格分隔
    }

    String combinedString = sb.toString().trim(); // 去除首尾空格

    // 使用正则表达式提取单词
    Pattern pattern = Pattern.compile("\\b\\w+\\b");
    Matcher matcher = pattern.matcher(combinedString);

    List<String> wordList = new ArrayList<>();
    while (matcher.find()) {
        wordList.add(matcher.group());
    }

    String[] words = wordList.toArray(new String[0]);

    return words;
}