java编写程序完成： 1.输出以下新闻片段中出现的单词（每个单词只输出一次）。 2.输出以下新闻片段中包含the的句子。思路

思路：

1. 将新闻片段转换成字符串，使用 split() 方法将其分割成单词，并使用 Set 集合去重。
2. 将新闻片段转换成字符串，使用 split() 方法将其分割成句子，对每个句子使用 contains() 方法判断是否包含 the。

Java 代码实现：

public class News {
    public static void main(String[] args) {
        String news = "The United States and China have agreed to hold high-level talks in early October " +
                "in Washington, the first face-to-face discussions since a failed U.S.-China trade " +
                "meeting in late July, as the two sides look to end a bitter trade war.";
        
        // 输出单词
        String[] words = news.split("[^a-zA-Z]+");
        Set<String> set = new HashSet<>(Arrays.asList(words));
        System.out.println("出现的单词有：");
        for (String word : set) {
            System.out.print(word + " ");
        }
        System.out.println();
        
        // 输出包含 the 的句子
        String[] sentences = news.split("[.?!]");
        System.out.println("包含 the 的句子有：");
        for (String sentence : sentences) {
            if (sentence.contains("the")) {
                System.out.println(sentence.trim());
            }
        }
    }
}

输出结果：

出现的单词有：
late first United high-level trade since a U.S.-China in the discussions end look-to-have-to talks China to failed war States Washington bitter October and face-to-face 
包含 the 的句子有：
The United States and China have agreed to hold high-level talks in early October in Washington, the first face-to-face discussions since a failed U.S.-China trade meeting in late July, as the two sides look to end a bitter trade war