20 lines
616 B
Java
20 lines
616 B
Java
// collections/SetOfInteger.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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public class SetOfInteger {
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public static void main(String[] args) {
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Random rand = new Random(47);
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Set<Integer> intset = new HashSet<>();
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for(int i = 0; i < 10000; i++)
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intset.add(rand.nextInt(30));
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System.out.println(intset);
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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, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29]
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*/
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