题解 | #参数解析#

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        if (scanner.hasNextLine()) {
            String s = scanner.nextLine();
            String[] originalParams = s.split(String.valueOf(' '));
            int size = originalParams.length;
            ArrayList<String> params = new ArrayList<String>();
            for (int i = 0; i < originalParams.length; ++i) {
                StringBuilder param;
                param = new StringBuilder(originalParams[i]);
                if (originalParams[i].startsWith("\"")) {
                    while (!originalParams[i].endsWith("\"")) {
                        ++i;
                        param.append(" ");
                        param.append(originalParams[i]);
                        --size;
                    }
                    params.add(param.substring(1, param.length()-1));
                } else {
                    params.add(param.toString());
                }
            }
            System.out.println(size);
            for (String param : params) {
                System.out.println(param);
            }
        }
    }
}