filename = input("Enter the file name: ") try: with open(filename, "r") as file: scores = [int(score) for score in file.read().split()] total = sum(scores) average = total / len(scores) print("Total: ", total) print("Average: ", average) except FileNotFoundError: print("File not found.")用JAVA解答

以下是相应的 Java 代码：

import java.util.Scanner;
import java.io.File;
import java.io.FileNotFoundException;

public class FileAverage {
   public static void main(String[] args) {
      Scanner scanner = new Scanner(System.in);
      System.out.print("Enter the file name: ");
      String fileName = scanner.nextLine();

      try {
         File file = new File(fileName);
         Scanner fileScanner = new Scanner(file);

         int total = 0;
         int count = 0;
         while (fileScanner.hasNextInt()) {
            int score = fileScanner.nextInt();
            total += score;
            count++;
         }

         if (count > 0) {
            double average = (double) total / count;
            System.out.println("Total: " + total);
            System.out.println("Average: " + average);
         } else {
            System.out.println("No scores found in file.");
         }

      } catch (FileNotFoundException e) {
         System.out.println("File not found.");
      }
   }
}

这个 Java 程序与 Python 版本非常相似。它也使用 `Scanner` 对象读取文件，并且在读取过程中计算分数的总和和数量。然后，它计算平均值并输出结果。如果文件不存在，则会捕获 `FileNotFoundException` 并输出错误消息。