以下是一个使用Java生成销售管理系统的示例代码，实现了您提到的功能： ```java import java.io.*; import java.util.*; public class SalesSystem { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); String fileName = "sales.txt"; SalesData salesData = new SalesData(fileName); while (true) { System.out.println("1. 计算销售额"); System.out.println("2. 排序销售员"); System.out.println("3. 排序产品"); System.out.println("4. 输出统计报表"); System.out.println("5. 退出"); System.out.print("请输入您的选择: "); int choice = scanner.nextInt(); switch (choice) { case 1: salesData.calculateSales(); break; case 2: salesData.sortSalesmen(); break; case 3: salesData.sortProducts(); break; case 4: salesData.outputReport(); break; case 5: System.exit(0); break; default: System.out.println("无效的输入，请重新输入。"); } } } } class SalesData { private List<Salesman> salesmen; private List<Product> products; private Map<Integer, Salesman> salesmanMap; private Map<Integer, Product> productMap; public SalesData(String fileName) { salesmen = new ArrayList<>(); products = new ArrayList<>(); salesmanMap = new HashMap<>(); productMap = new HashMap<>(); try (BufferedReader reader = new BufferedReader(new FileReader(fileName))) { String line; while ((line = reader.readLine()) != null) { String[] data = line.split(","); int salesmanId = Integer.parseInt(data[0]); int productId = Integer.parseInt(data[1]);