package arrays;

// arrays/CountUpward.java

// (c)2021 MindView LLC: see Copyright.txt

// We make no guarantees that this code is fit for any purpose.

// Visit http://OnJava8.com for more book information.

import java.util.*;

import java.util.stream.*;

import static onjava.ArrayShow.*;

public class CountUpward {

static long[] fillCounted(int size) {

return LongStream.iterate(0, i -> i + 1)

.limit(size).toArray();

}

public static void main(String[] args) {

long[] l1 = fillCounted(20); // No problem

show(l1);

// On my machine, this runs out of heap space:

//- long[] l2 = fillCounted(10_000_000);

}

}

/* Output:

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,

16, 17, 18, 19]

*/