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27 * @summary Submap clear tickled a bug in an optimization suggested by |
27 * @summary Submap clear tickled a bug in an optimization suggested by |
28 * Prof. William Collins (Lafayette College) |
28 * Prof. William Collins (Lafayette College) |
29 * @author Josh Bloch |
29 * @author Josh Bloch |
30 */ |
30 */ |
31 |
31 |
32 import java.util.*; |
32 import java.util.Set; |
|
33 import java.util.SortedSet; |
|
34 import java.util.TreeSet; |
33 |
35 |
34 public class SubMapClear { |
36 public class SubMapClear { |
35 public static void main(String[] args) { |
37 public static void main(String[] args) { |
36 SortedSet treeSet = new TreeSet(); |
38 SortedSet treeSet = new TreeSet(); |
37 for (int i = 1; i <=10; i++) |
39 for (int i = 1; i <=10; i++) |