Java API:数据处理

import java.util.*;
import java.io.*;

public class DataProcessingExample {
    public static void main(String[] args) {
        // 使用集合框架API处理数据
        List<String> data = Arrays.asList("apple", "banana", "cherry");
        Collections.sort(data);
        System.out.println("Sorted Data: " + data);

        // 使用I/O API读取文件
        try (BufferedReader reader = new BufferedReader(new FileReader("data.txt"))) {
            String line;
            while ((line = reader.readLine()) != null) {
                System.out.println(line);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }

        // 使用JDBC API连接数据库
        try (Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/mydb", "user", "password")) {
            Statement stmt = conn.createStatement();
            ResultSet rs = stmt.executeQuery("SELECT * FROM users");
            while (rs.next()) {
                System.out.println(rs.getString("name"));
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}