package corejava;

import java.util.*;

public class SetExample {

public static void main(String args[]) {
	int count[] = { 3, 12, 21, 30, 48, 84 };
	Set<Integer> set = new HashSet<Integer>();
	try {
	for (int i = 0; i < 3; i++) {
		set.add(count[i]);
	}
	System.out.println(set);

	TreeSet sortedSet = new TreeSet<Integer>(set);
	System.out.println("The sorted list is:");
	System.out.println(sortedSet);

	System.out.println("First element in the set: "
			+ (Integer) sortedSet.first());
	System.out.println("Last element in the set: "
			+ (Integer) sortedSet.last());
	} catch (Exception e) {
   }
  }

}