Java tutorial
import java.util.Arrays; import java.util.Collections; import java.util.List; public class MainClass { public static void main(String args[]) throws Exception { List list = Arrays.asList("a", "c", "b"); Collections.sort(list); for (int i = 0, n = list.size(); i < n; i++) { if (i != 0) System.out.print(", "); System.out.print(list.get(i)); } System.out.println(); } }