Java 8 Streams Java Java API
Class:
java.util.stream.StreamSupport
Methods:
public static LongStream longStream(Spliterator.OfLong spliterator,
boolean parallel)
Creates a new sequential or parallel
LongStream
from a
Spliterator.OfLong.
public static LongStream longStream(Supplier<? extends Spliterator.OfLong> supplier,
int characteristics,
boolean parallel)
Creates a new sequential or parallel
LongStream
from a
Supplier
of
Spliterator.OfLong
. This method also specifies the characteristics of the supplied Spliterator.
See also Iterator vs Spliterator.
Examples
 package com.logicbig.example.streamsupport;
import java.util.Arrays;
import java.util.stream.LongStream;
import java.util.stream.StreamSupport;
public class LongStreamExample {
public static void main(String... args) {
LongStream ls = StreamSupport.longStream(Arrays.spliterator(new long[]{1L, 5L, 8L}), false);
long sum = ls.sum();
System.out.println(sum);
}
}
Output14
package com.logicbig.example.streamsupport;
import java.util.Arrays;
import java.util.Spliterator;
import java.util.stream.LongStream;
import java.util.stream.StreamSupport;
public class LongStreamExample2 {
public static void main(String... args) {
LongStream ls = StreamSupport.longStream(() -> Arrays.spliterator(new long[]{1L, 5L, 8L}),
Spliterator.DISTINCT, false);
double avg = ls.average().orElse(0);
System.out.println(avg);
}
}
Output4.666666666666667
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