关于Java单词颠倒顺序的基本JAVA编码问题

public class ReverseWords {
    public static String reverseWords(String sentence) {
        // 将字符串按空格分割成单词数组
        String[] words = sentence.split(" ");
        
        // 创建一个新的字符串数组，用于存储颠倒顺序后的单词
        String[] reversedWords = new String[words.length];
        
        // 使用循环遍历原始单词数组，将每个单词颠倒顺序后存储到新的字符串数组中
        for (int i = 0; i < words.length; i++) {
            StringBuilder reversedWord = new StringBuilder(words[i]);
            reversedWords[i] = reversedWord.reverse().toString();
        }
        
        // 将新的字符串数组连接成一个新的字符串，单词之间用空格分隔
        return String.join(" ", reversedWords);
    }
    
    public static void main(String[] args) {
        String sentence = "Java is a programming language";
        String reversedSentence = reverseWords(sentence);
        System.out.println(reversedSentence);
    }
}