w4-张思渊-202401070104

project/src/project/utils/DataCleaner.java

@@ -0,0 +1,29 @@
+package project.utils;
+
+public class DataCleaner {
+    public static String cleanText(String text) {
+        if (text == null) return "";
+        return text.trim()
+                .replaceAll("<[^>]*>", "")
+                .replaceAll("\\s+", " ")
+                .replaceAll("[\\r\\n]", "");
+    }
+
+    public static double parseRating(String ratingStr) {
+        if (ratingStr == null || ratingStr.isEmpty()) return 0.0;
+        try {
+            return Double.parseDouble(ratingStr.trim());
+        } catch (NumberFormatException e) {
+            return 0.0;
+        }
+    }
+
+    public static int parseYear(String yearStr) {
+        if (yearStr == null || yearStr.isEmpty()) return 0;
+        try {
+            return Integer.parseInt(yearStr.replaceAll("[^0-9]", ""));
+        } catch (NumberFormatException e) {
+            return 0;
+        }
+    }
+}