Change:  advantage class a{ botten1.addActionListener( anomynous inner class.. ) ...}Disadvantages: May hard to be maintained or understanded by inexperienced programmer. Most develop tools come a bit little support inner classes.考題：第三，Static Nested Class 和 Inner Class的不同，說得越多越好。Static Nested Class不能直接參考它的封裝類別(enclosing class)中的實體變數或方法，僅能透過object instance的方式存取。Inner Class可以直接存取它的封裝類別(enclosing class)中的變數或方法。inner class中不能定義任何的static成員。   View changes from previous version. (Word count: 140)

Change: Popcorn p = new Popcorn(){ public void pop(){ System.out.println("anomynous popcorn"); } }; } new Popcorn()後面沒接;，表示後面寫的是匿名內隱類別，如果Popcorn是實體類別，則該匿名內隱類別就是Popcorn的子類別，如果Popcorn是介面，則該匿名內隱類別就是implmenter，擴充該interface。 原來的;跑到內隱類別結束的大括號後面。6.在引數宣告匿名內隱類別 class MyWonderfulClass{ void go(){ Bar b = new Bar(){ b.doStuff(new Foo() { public void foof(){ System.out.println("foofy"); } }); } } } interface Foo{ void foof(); } class Bar{ void doStuff(Foo f){} }   View changes from previous version. (Word count: 63)