import java.util.Arrays;

public class Demo2
{
    public static void main(String[] args)
    {
	String[] a = {"xyz", "abc", "uvw", "klm"}; 

	System.out.println( Arrays.toString(a) + "\n");

	BubbleSort.sort(a);

	System.out.println("\n" + Arrays.toString(a) + "\n");
    }
}