From 72d5ee9b1a92a530de4194bc0d0d831c71c66d37 Mon Sep 17 00:00:00 2001
From: ZhengJiayin <13230092115@163.com>
Date: Thu, 14 May 2026 12:58:33 +0800
Subject: [PATCH] w7

---
 w7/ScoreCalculator.class | Bin 0 -> 1987 bytes
 w7/ScoreCalculator.java  |  37 +++++++++++++++++++++++++++++++++++++
 2 files changed, 37 insertions(+)
 create mode 100644 w7/ScoreCalculator.class
 create mode 100644 w7/ScoreCalculator.java

diff --git a/w7/ScoreCalculator.class b/w7/ScoreCalculator.class
new file mode 100644
index 0000000000000000000000000000000000000000..f2ef002dc75cc0bab11b60c7effe71cf04fe08b3
GIT binary patch
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literal 0
HcmV?d00001

diff --git a/w7/ScoreCalculator.java b/w7/ScoreCalculator.java
new file mode 100644
index 0000000..44a8e20
--- /dev/null
+++ b/w7/ScoreCalculator.java
@@ -0,0 +1,37 @@
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.IOException;
+
+public class ScoreCalculator {
+    public static void main(String[] args) {
+        String fileName = "scores.txt";
+
+        try (BufferedReader br = new BufferedReader(new FileReader(fileName))) {
+            String line;
+            int sum = 0;
+            int count = 0;
+
+            while ((line = br.readLine()) != null) {
+                try {
+                    int score = Integer.parseInt(line.trim());
+                    sum += score;
+                    count++;
+                } catch (NumberFormatException e) {
+                    System.err.println("Number format error, skip invalid line: " + line);
+                }
+            }
+
+            if (count > 0) {
+                double average = (double) sum / count;
+                System.out.println("Total: " + sum);
+                System.out.println("Count: " + count);
+                System.out.println("Average: " + average);
+            } else {
+                System.out.println("No valid score data");
+            }
+
+        } catch (IOException e) {
+            System.err.println("File read error: " + e.getMessage());
+        }
+    }
+}
\ No newline at end of file