diff --git a/w2/DataCleaner.java b/w2/DataCleaner.java
index abef194..7deb17d 100644
--- a/w2/DataCleaner.java
+++ b/w2/DataCleaner.java
@@ -1,2 +1,32 @@
-public class 异常数据拦截与清洗流水线  {
+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
+
+    for (int data : sensorData) {
+        if (data == 999) {
+            System.out.println("致命错误：传感器掉线，终止处理");
+            break;
+        }
+
+        if (data <= 0 || data > 100) {
+            System.out.println("警告：发现越界数据 " + data + "，已跳过");
+            continue;
+        }
+
+        // 正常范围：1 <= data <= 100
+        validSum += data;
+        validCount++;
+    }
+
+    // 最终输出
+    if (validCount > 0) {
+        double average = (double) validSum / validCount;
+        System.out.println("有效数据的平均值：" + average);
+    } else {
+        System.out.println("无有效数据");
+    }
 }
+}
+