feat:完成第二周数据清洗作业，代码运行正确

w2/DataCleaner.java

@@ -0,0 +1,28 @@
+public class DataCleaner {
+    public static void main(String[] args) {
+        int[] sensorData = {85, -5, 92, 0, 105, 999, 88, 76};
+
+        int validSum = 0;
+        int validCount = 0;
+
+        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;
+            }
+            validSum += data;
+            validCount++;
+        }
+
+        if (validCount > 0) {
+            double avg = (double) validSum / validCount;
+            System.out.println("有效数据平均值: " + avg);
+        } else {
+            System.out.println("无有效数据");
+        }
+    }
+}