package?com.mingrisoft.oop;

public?class?Book?{
????
????private?static?int?counter?=?0;
????
????public?Book（String?title）?{
????????System.out.println（“售出圖書：“?+?title）;
????????counter++;
????}
????
????public?static?int?getCounter（）?{
????????return?counter;
????}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件?????????232??2010-09-11?17:02??.classpath
?????文件?????????379??2010-09-11?17:02??.project
?????文件?????????821??2013-11-21?08:41??bin\com\mingrisoft\oop\Book.class
?????文件????????1178??2013-11-21?08:41??bin\com\mingrisoft\oop\BookTest.class
?????文件?????????291??2010-09-11?17:02??src\com\mingrisoft\oop\Book.java
?????文件?????????424??2010-09-11?17:02??src\com\mingrisoft\oop\BookTest.java