Interface CustomCollectors
public interface CustomCollectors
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Method Summary
Modifier and TypeMethodDescriptionstatic Collector
<CharSequence, StringJoiner, String> joining
(CharSequence delimiter, CharSequence prefix, CharSequence suffix) Returns aCollector
similar 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 Details
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joining
static Collector<CharSequence,StringJoiner, joiningString> (CharSequence delimiter, CharSequence prefix, CharSequence suffix) Returns aCollector
similar 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
Collector
which concatenates CharSequence elements, separated by the specified delimiter, in encounter order
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