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import java.util.Arrays;
import java.util.SortedSet;
import java.util.TreeSet;
public class Tail {
public static void main(String args[]) throws Exception {
String elements[] = { "Irish Setter", "Poodle", "English Setter",
"Gordon Setter", "Pug" };
SortedSet set = new TreeSet(Arrays.asList(elements));
System.out.println(set.tailSet("Irish Setter"));
System.out.println(set.headSet("Irish Setter"));
System.out.println(set.headSet("Irish Setter\0"));
System.out.println(set.tailSet("Irish Setter\0"));
System.out.println(set.subSet("Irish Setter", "Poodle\0"));
System.out.println(set.subSet("Irish Setter", "Irish Setter\0"));
System.out.println(set.subSet("Irish Setter", "Irish Setter"));
}
}
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