27 lines
739 B
Java
27 lines
739 B
Java
// generics/Fibonacci.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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// Generate a Fibonacci sequence
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import java.util.function.*;
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import java.util.stream.*;
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public class Fibonacci implements Supplier<Integer> {
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private int count = 0;
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@Override
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public Integer get() { return fib(count++); }
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private int fib(int n) {
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if(n < 2) return 1;
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return fib(n-2) + fib(n-1);
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}
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public static void main(String[] args) {
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Stream.generate(new Fibonacci())
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.limit(18)
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.map(n -> n + " ")
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.forEach(System.out::print);
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}
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}
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/* Output:
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1 1 2 3 5 8 13 21 34 55 89 144 233 377 610 987 1597 2584
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*/
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