| Package | Description | 
|---|---|
| java.util | 
 Contains the collections framework, legacy collection classes, event model,
date and time facilities, internationalization, and miscellaneous utility
classes (a string tokenizer, a random-number generator, and a bit array). 
 | 
| java.util.stream | 
 Classes to support functional-style operations on streams of elements, such
 as map-reduce transformations on collections. 
 | 
| Modifier and Type | Method and Description | 
|---|---|
void | 
LongSummaryStatistics.combine(LongSummaryStatistics other)
Combines the state of another  
LongSummaryStatistics into this
 one. | 
| Modifier and Type | Method and Description | 
|---|---|
LongSummaryStatistics | 
LongStream.summaryStatistics()
Returns a  
LongSummaryStatistics describing various summary data
 about the elements of this stream. | 
| Modifier and Type | Method and Description | 
|---|---|
static <T> Collector<T,?,LongSummaryStatistics> | 
Collectors.summarizingLong(ToLongFunction<? super T> mapper)
Returns a  
Collector which applies an long-producing
 mapping function to each input element, and returns summary statistics
 for the resulting values. | 
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