import java.util.TreeSet;

/*
 * Example of for-each loop.
 */
public class TreeSetExample
{
    public static void main( String[] args )
    {

        TreeSet<Integer> treeSet = new TreeSet<Integer>();

        treeSet.add(10);
        treeSet.add(50);
        treeSet.add(40);
        treeSet.add(20);
        treeSet.add(30);

        System.out.println("treeSet : " + treeSet + "\n");
        /*
         * Using foreach loop get each element from the treeSet.
         */

        for( Integer value : treeSet )
        {
            System.out.println(value);
        }
    }
}