diff --git a/src/main/java/lambdasinaction/chap1/FilteringApples.java b/src/main/java/lambdasinaction/chap1/FilteringApples.java
index 51afc8cb..20cefa50 100644
--- a/src/main/java/lambdasinaction/chap1/FilteringApples.java
+++ b/src/main/java/lambdasinaction/chap1/FilteringApples.java
@@ -1,12 +1,14 @@
 package lambdasinaction.chap1;
 
-import java.util.*;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
 import java.util.function.Predicate;
 
 public class FilteringApples{
 
     public static void main(String ... args){
-
+    	//流处理
         List<Apple> inventory = Arrays.asList(new Apple(80,"green"),
                                               new Apple(155, "green"),
                                               new Apple(120, "red"));