Collections provide a number of static methods for searching, sorting, and converting Collection objects. : Arrays « Utility Classes « SCJP

1. SCJP
2. Utility Classes
3. Arrays

import java.util.Arrays;
import java.util.List;
import java.util.ListIterator;

public class MainClass {
  public static void main(String args[]) {
    String strings[] = { "J", "E", "L", "A", "P", "S", "G", "B", "K", "L" };
    Arrays.sort(strings);
    List list = Arrays.asList(strings);
    displayList(list);
  }

  static void displayList(List list) {
    System.out.println("The size of the list is: " + list.size());
    ListIterator i = list.listIterator(0);
    while (i.hasNext()) {
      Object o = i.next();
      if (o == null)
        System.out.println("null");
      else
        System.out.println(o.toString());
    }
  }
}