From 228f5b498fa5b7ef41b101e735d82a087b531942 Mon Sep 17 00:00:00 2001
From: zhangkunqiu <2747209206@qq.com>
Date: Fri, 13 Mar 2026 21:07:19 +0800
Subject: [PATCH] DataCleaner.java

---
 w2/DataCleaner.java | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 w2/DataCleaner.java

diff --git a/w2/DataCleaner.java b/w2/DataCleaner.java
new file mode 100644
index 0000000..334b4fd
--- /dev/null
+++ b/w2/DataCleaner.java
@@ -0,0 +1,34 @@
+public class DataCleaner {
+    public static void main(String[] args) {
+        int[] sensorData = {85, -5, 92, 0, 105, 999, 88, 76};
+
+        int validSum = 0;   // 有效数据总和
+        int validCount = 0; // 有效数据个数
+
+        // 遍历数组处理数据
+        for (int data : sensorData) {
+            // 致命错误：遇到999，终止处理
+            if (data == 999) {
+                System.out.println("致命错误: 传感器掉线, 终止处理");
+                break;
+            }
+            // 无效数据：0、负数或大于100（非999）
+            if (data <= 0 || data > 100) {
+                System.out.println("警告: 发现越界数据[" + data + "], 已跳过");
+                continue;
+            }
+            // 正常数据：1~100之间
+            validSum += data;
+            validCount++;
+        }
+
+        // 输出最终结果
+        if (validCount > 0) {
+            // 避免整数除法陷阱，转换为double计算平均值
+            double average = (double) validSum / validCount;
+            System.out.printf("有效数据平均值: %.2f%n", average);
+        } else {
+            System.out.println("无有效数据");
+        }
+    }
+}
\ No newline at end of file