Java tutorial
import java.util.Arrays; import java.util.Comparator; public class MainClass { public static void main(String[] args) { String[] sa = new String[] { "adf", "fdsa", "ASDF", "FSA", "r", "R" }; System.out.println("Before sorting: " + Arrays.asList(sa)); Arrays.sort(sa, new AlphabeticComparator()); System.out.println("After sorting: " + Arrays.asList(sa)); } } class AlphabeticComparator implements Comparator { public int compare(Object o1, Object o2) { String s1 = (String) o1; String s2 = (String) o2; return s1.toLowerCase().compareTo(s2.toLowerCase()); } } /**/