Java匹配字符串中的整个单词

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

public class WordMatcher {
    public static void main(String[] args) {
        String text = "Hello, this is a sample text. It contains some words.";

        // 定义要匹配的单词
        String wordToMatch = "sample";

        // 构建正则表达式模式
        String patternString = "\\b" + wordToMatch + "\\b";

        // 编译正则表达式
        Pattern pattern = Pattern.compile(patternString);

        // 创建Matcher对象
        Matcher matcher = pattern.matcher(text);

        // 查找匹配的单词
        while (matcher.find()) {
            // 输出匹配到的单词
            System.out.println("匹配到的单词: " + matcher.group());
        }
    }
}