/** Mapping.
 * @author Jaanus
 * @since 1.8
 */
public class J8example5a {

  public static void main (String[] args) {
    "Hello World 2015".chars()
                 .map (ch -> 
                		Character.isLowerCase (ch)?
                		  Character.toUpperCase (ch):
                		  (Character.isUpperCase (ch)?
                		    Character.toLowerCase (ch):
                		    ch)
                	  )
                 .forEach (ch -> System.out.print ((char)ch));
    System.out.println();
  }

}