添加 'article类'

article类

@@ -0,0 +1,67 @@
+import java.time.LocalDate;
+
+public class Article {
+    private String title;
+    private String content;
+    private String url;
+
+    // 作业要求新增
+    private String author;
+    private LocalDate publishDate;
+
+    public Article() {
+    }
+
+    public Article(String title, String content, String url, String author, LocalDate publishDate) {
+        this.title = title;
+        this.content = content;
+        this.url = url;
+        this.author = author;
+        this.publishDate = publishDate;
+    }
+
+    // getter & setter
+    public String getTitle() {
+        return title;
+    }
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getContent() {
+        return content;
+    }
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public String getUrl() {
+        return url;
+    }
+    public void setUrl(String url) {
+        this.url = url;
+    }
+
+    public String getAuthor() {
+        return author;
+    }
+    public void setAuthor(String author) {
+        this.author = author;
+    }
+
+    public LocalDate getPublishDate() {
+        return publishDate;
+    }
+    public void setPublishDate(LocalDate publishDate) {
+        this.publishDate = publishDate;
+    }
+
+    // 打印文章信息
+    public void showInfo() {
+        System.out.println("标题：" + title);
+        System.out.println("作者：" + author);
+        System.out.println("发布日期：" + publishDate);
+        System.out.println("链接：" + url);
+        System.out.println("内容：" + content);
+    }
+}