类层次结构
- java.lang.Object 
       
- java.util.stream.Collectors
 - java.util.stream.StreamSupport
 
 
Interface Hierarchy
- java.lang.AutoCloseable 
       
- java.util.stream.BaseStream<T,S> 
         
- java.util.stream.DoubleStream
 - java.util.stream.IntStream
 - java.util.stream.LongStream
 - java.util.stream.Stream<T>
 
 
 - java.util.stream.BaseStream<T,S> 
         
 - java.util.stream.Collector<T,A,R>
 - java.util.function.Consumer<T> 
       
- java.util.stream.Stream.Builder<T>
 
 - java.util.function.DoubleConsumer 
       
- java.util.stream.DoubleStream.Builder
 
 - java.util.function.IntConsumer 
       
- java.util.stream.IntStream.Builder
 
 - java.util.function.LongConsumer 
       
- java.util.stream.LongStream.Builder
 
 
Enum Hierarchy
- java.lang.Object 
       
- java.lang.Enum<E> (implements java.lang.Comparable<T>, java.io.Serializable) 
         
- java.util.stream.Collector.Characteristics
 
 
 - java.lang.Enum<E> (implements java.lang.Comparable<T>, java.io.Serializable)