File list (Check if you may need any files):
ch5
...\A.class
...\A.java
...\A.java.bak
...\B.class
...\C.class
...\Circle2.class
...\Comp_Area.java
...\Comp_Area.java.bak
...\ConstructorTest.class
...\ConstructorTest.java
...\ConstructorTest.java.bak
...\Dog.class
...\Fixed_Telephone.class
...\Fixed_Telephone.txt
...\HiddenField.java
...\HiddenFieldExample.class
...\HiddenFieldExample.java
...\IP_Phone.class
...\Mobile_Phone.class
...\MyFrameTest.class
...\MyFrameTest.java
...\MyFrameTest.java.bak
...\Ordinary_phone.class
...\OverrideExample.class
...\OverrideExample.java
...\OverrideExample.java.$$$
...\Philosopher.class
...\PhoneCard.java
...\PolyMorphism_Example1.class
...\PolyMorphism_Example1.java
...\PolyMorphism_Example1.java.bak
...\Rectangle.class
...\Rectangle2.class
...\ReloadExample.class
...\ReloadExample.java
...\ReloadExample.txt
...\Shape.class
...\Shape2.class
...\ShapeTestWithInterface.class
...\ShapeTestWithInterface.java
...\ShapeTestWithInterface.java.bak
...\ShapeTestWithObjectArray.class
...\ShapeTestWithObjectArray.java
...\ShapeTestWithObjectArray.java.bak
...\ShapeTestWithObjectArray1.class
...\ShapeTestWithObjectArray1.java
...\ShapeTestWithObjectArray1.java.bak
...\ShapeTestWithPolymorphism.class
...\ShapeTestWithPolymorphism.java
...\ShapeTestWithPolymorphism.java.bak
...\Speaker.class
...\Square.class
...\Square2.class
...\Stack.class
...\Stack.java
...\StackTest.class
...\StackTest.java
...\StockApplet.java
...\SumExample.java
...\SumaryExample.class
...\SumaryExample.java
...\SumaryExample.java.bak
...\SumaryExample.txt
...\Talking.class
...\Talking.java
...\Talking.java.bak
...\TelePhone.java
...\TelePhone.java.bak
...\Telephone.class
...\Texttest.java
...\aaa.class
...\area.class
...\bbb.class
...\circle.class
...\demo.class
...\demo.java
...\demo.java.bak
...\example.java
...\people.java
...\reload.java