Java实现英文句子中的单词顺序逆序输出的方法

Z时代
2024-01-10
分类：综合

本文实例讲述了Java实现英文句子中的单词顺序逆序输出的方法。分享给大家供大家参考，具体如下：

题目要求：给定n行的英文句子，要求输出句子中逆序单词后的句子，如:

输入：n=3

I love you

How are you

My name is Liming

输出：

you love I

you are How

Liming is name My

依据Java语言给我们提供的拆分空格间隔的单词的方法(split(" "))，倒序输出即可;

实现代码：


import java.io.UnsupportedEncodingException;
import java.util.Scanner;
public class Main {
    public static String reverseWords(String sentence) {
        StringBuilder sb = new StringBuilder(sentence.length() + 1);
        String[] words = sentence.split(" ");
        for (int i = words.length - 1; i >= 0; i--) {
            sb.append(words[i]).append(' ');
        }
        sb.setLength(sb.length() - 1);
        return sb.toString();
    }
    @SuppressWarnings("resource")
    public static void main(String[] args) throws UnsupportedEncodingException {
        Scanner in = new Scanner(System.in);
        System.out.printf("Please input how many lines you want to enter(test by jb51): ");
        String[] input = new String[in.nextInt()];
        in.nextLine();
        for (int i = 0; i < input.length; i++) {
            input[i] = in.nextLine();
        }
        System.out.printf("\nYour input:\n");
        for (String s : input) {
            System.out.println(reverseWords(s));
        }
    }
}