1. public class Tenor extends Singer { 4. public static String sing() { return "fa"; } 5. public static void main(String[] args) { 6. Tenor t = new Tenor(); 7. Singer s = new Tenor(); 8. System.out.println(t.sing() + " " + s.sing()); 9. } 10. } 11. class Singer { public static String sing() { return "la"; } }