javacode\Animal.class
........\Cat.class
........\dddd.class
........\dddddd.class
........\Dog.class
........\FStudent.class
........\FTeacher.class
........\InteDemo.class
........\InteDemo.java
........\MultiDemo.class
........\MultiDemo.java
........\Person.class
........\Pig.class
........\PLAY.class
........\SMOKE.class
........\Student.class
........\Teacher.class
javacode