25 lines
726 B
Java
25 lines
726 B
Java
// arrays/CountUpward.java
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// (c)2016 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://mindviewinc.com/Books/OnJava/ for more book information.
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import java.util.*;
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import java.util.stream.*;
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import static onjava.ArrayShow.*;
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public class CountUpward {
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static long[] fillCounted(int size) {
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return LongStream.iterate(0, i -> i + 1)
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.limit(size).toArray();
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}
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public static void main(String[] args) {
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long[] l1 = fillCounted(20); // No problem
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show(l1);
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// On my machine, this runs out of heap space:
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//- long[] l2 = fillCounted(10_000_000);
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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, 10, 11, 12, 13, 14, 15, 16,
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17, 18, 19]
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*/
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