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Author: omoomoo

29.Java8之Stream.md

@@ -34,5 +34,10 @@ List<Integer> rs = list.stream().filter(i -> i % 2 == 0).map(i -> i * i).sorted(
 
 `Stream`提供对集合进行函数式编程操作的类。
 
+Stream类和集合类都用于操作集合，但是Stream跟集合类存在很多不同点：
+ * df \
+ * df 
+ * df 
+ * 
 
 Classes to support functional-style operations on streams of elements, such as map-reduce transformations on collections.