29 lines
737 B
Java
29 lines
737 B
Java
// concurrent/ParallelStreamPuzzle.java
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// (c)2017 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://OnJava8.com for more book information.
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import java.util.*;
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import java.util.function.*;
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import java.util.stream.*;
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public class ParallelStreamPuzzle {
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static class IntGenerator
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implements Supplier<Integer> {
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private int current = 0;
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public Integer get() {
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return current++;
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}
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}
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public static void main(String[] args) {
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List<Integer> x =
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Stream.generate(new IntGenerator())
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.limit(10)
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.parallel() // [1]
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.collect(Collectors.toList());
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System.out.println(x);
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}
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}
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/* Output:
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[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
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*/
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