21 lines
609 B
Java
21 lines
609 B
Java
// streams/StreamOfRandoms.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.stream.*;
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public class StreamOfRandoms {
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static Random rand = new Random(47);
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public static void main(String[] args) {
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Stream.of(1, 2, 3, 4, 5)
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.flatMapToInt(i -> IntStream.concat(
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rand.ints(0, 100).limit(i), IntStream.of(-1)))
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.forEach(n -> System.out.format("%d ", n));
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}
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}
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/* Output:
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58 -1 55 93 -1 61 61 29 -1 68 0 22 7 -1 88 28 51 89 9
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-1
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*/
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