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/*
Output:
[I, P]
[E, G]
[E, G, I]
[P]
[I, P]
[I]
[]
* */
import java.util.Arrays;
import java.util.SortedSet;
import java.util.TreeSet;
public class MainClass {
public static void main(String args[]) throws Exception {
String elements[] = { "I", "P", "E", "G", "P" };
SortedSet set = new TreeSet(Arrays.asList(elements));
System.out.println(set.tailSet("I"));
System.out.println(set.headSet("I"));
System.out.println(set.headSet("I\0"));
System.out.println(set.tailSet("I\0"));
System.out.println(set.subSet("I", "P\0"));
System.out.println(set.subSet("I", "I\0"));
System.out.println(set.subSet("I", "I"));
}
}
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