diff --git a/springboot-source-code-analysis/src/main/java/com/example/springboot/source/code/analysis/event/RainListener.java b/springboot-source-code-analysis/src/main/java/com/example/springboot/source/code/analysis/event/RainListener.java
index 37ca02a..0c957e6 100644
--- a/springboot-source-code-analysis/src/main/java/com/example/springboot/source/code/analysis/event/RainListener.java
+++ b/springboot-source-code-analysis/src/main/java/com/example/springboot/source/code/analysis/event/RainListener.java
@@ -19,6 +19,7 @@ public class RainListener implements WeatherListener {
 @Override
 public void onWeatherEvent(WeatherEvent event) {
 if (event instanceof RainEvent) {
+ 
 System.out.println("rain event ..." + event.getWeather());
 }
 }
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