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public interface CustomCollectors
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Method Summary
Static Methods Modifier and Type Method Description static Collector<CharSequence,StringJoiner,String>joining(CharSequence delimiter, CharSequence prefix, CharSequence suffix)Returns aCollectorsimilar to the standard JDK joining collector, except that this collector returns an empty string if there are no elements to collect.
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Method Detail
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joining
static Collector<CharSequence,StringJoiner,String> joining(CharSequence delimiter, CharSequence prefix, CharSequence suffix)
Returns aCollectorsimilar to the standard JDK joining collector, except that this collector returns an empty string if there are no elements to collect.- Parameters:
delimiter- the delimiter to be used between each elementprefix- the sequence of characters to be used at the beginning of the joined resultsuffix- the sequence of characters to be used at the end of the joined result- Returns:
- A
Collectorwhich concatenates CharSequence elements, separated by the specified delimiter, in encounter order
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