正则表达式用于在按括号分组时忽略内括号，java

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

public class RegexExample {
    public static void main(String[] args) {
        String input = "Hello (World)";
        Pattern pattern = Pattern.compile("Hello (?:World)");
        Matcher matcher = pattern.matcher(input);

        if (matcher.find()) {
            System.out.println("匹配成功");
        } else {
            System.out.println("匹配失败");
        }
    }
}