...

src/kr/co/swh/lecture/java/scene4/FileByteStreamObjectRead.java

 		ObjectInputStream input = new ObjectInputStream(new FileInputStream("c:/text.txt"));
 		Object obj = input.readObject();
 		if(obj instanceof AA){		//	obj객체가 AA 데이터 타입인지 체크
+
 			System.out.println(obj.toString());
+			System.out.println(obj);
 		}
 		input.close();
 	}