Java2024.iml

@@ -7,6 +7,5 @@
     </content>
     <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="library" name="lib" level="project" />
   </component>
 </module>

note.txt

@@ -1,2 +0,0 @@
-这是第一行
-这是第二行

src/chapter10/Example01.java

@@ -1,46 +0,0 @@
-package chapter10;
-
-import java.sql.Connection;
-import java.sql.ResultSet;
-import java.sql.Statement;
-import java.sql.DriverManager;
-
-public class Example01 {
-    public static void main(String[] args) {
-        try {
-            // 1. 加载驱动
-            Class.forName("com.mysql.cj.jdbc.Driver");
-
-            // 2. 准备连接参数
-            String url = "jdbc:mysql://localhost:3306/school?characterEncoding=utf-8&useSSL=false&serverTimezone=UTC";
-            String username = "root";
-            String password = "root";
-
-            // 使用try-with-resources自动关闭资源
-            try (
-                    // 创建连接
-                    Connection connection = DriverManager.getConnection(url, username, password);
-                    // 创建语句对象
-                    Statement statement = connection.createStatement();
-                    // 执行查询获取结果集
-                    ResultSet resultSet = statement.executeQuery("select * from student")
-            ) {
-                // 处理结果集
-                while (resultSet.next()) {
-                    int id = resultSet.getInt("id");
-                    String name = resultSet.getString("name");
-                    int age = resultSet.getInt("age");
-                    String gender = resultSet.getString("gender");
-                    String className = resultSet.getString("class");
-
-                    System.out.println("id=" + id + ", name=" + name + ", age=" + age +
-                            ", gender=" + gender + ", className=" + className);
-                }
-            }
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-
-
-    }
-}

test.txt

@@ -1 +0,0 @@
-itcast

work.txt

@@ -1,3 +0,0 @@
-Java程序设计
-大数据2班
-2024年