句子逆序

import java.util.Scanner;

public class Main 
{
    private String reverse(String sentence)
    {
        String[] words = sentence.split(" ");
        StringBuilder result = new StringBuilder();
        for (int i = words.length - 1; i >= 0; i--) {
            result.append(words[i]).append(" ");
        }
        return result.toString();
    }

    public Main() 
    {
        Scanner in = new Scanner(System.in);
        while (in.hasNextLine()) 
        {
            String sentence = in.nextLine();
            String result = reverse(sentence);
            System.out.println(result);
        }
    }

    public static void main(String[] args) 
    {
        Main solution = new Main();
    }
}