继承
....\InheritanceTest
....\...............\Circle.class
....\...............\Circle.java
....\...............\InheritanceTest.class
....\...............\InheritanceTest.java
....\...............\Point.class
....\...............\Point.java
....\Inheriting
....\..........\Inheriting.java
....\ManagerTest
....\...........\Employee.class
....\...........\Manager.class
....\...........\ManagerTest.class
....\...........\ManagerTest.java
....\point
....\.....\Point.class
....\.....\Point.java
....\.....\Test.class
....\.....\Test.java
....\shape(interfade)
....\................\Circle.java
....\................\Cylinder.java
....\................\Point.java
....\................\Shape.java
....\................\Test.java
....\test
....\TestsystemException
....\...................\TestsystemException.java
....\test\Boss.java
....\....\CommissionWorker.java
....\....\Employee.java
....\....\HourlyWorker.java
....\....\PieceWorker.java
....\....\Test.java
继承和多态
..........\.classpath
..........\.project
..........\.settings
..........\.........\org.eclipse.jdt.core.prefs
..........\bin
..........\...\A.class
..........\...\B.class
..........\...\ConstructorDemo.class
..........\...\Employee.class
..........\...\Faculty.class
..........\...\HideDemo.class
..........\...\Person.class
..........\...\poly
..........\...\....\Doctor.class
..........\...\....\GraduateStudent.class
..........\...\....\Person.class
..........\...\....\PolymorphismDemo.class
..........\...\....\Student.class
..........\...\StringStack.class
..........\...\TestArrayList.class
..........\...\TestArrayListGeneric.class
..........\...\v1
..........\...\..\Circle.class
..........\...\..\GeometricObject.class
..........\...\..\Rectangle.class
..........\...\..\TestCircleRectangle.class
..........\...\v2
..........\...\..\Circle.class
..........\...\..\GeometricObject.class
..........\...\..\Rectangle.class
..........\...\..\TestCasting.class
..........\...\..\TestCircleRectangle.class
..........\src
..........\...\ConstructorDemo.java
..........\...\HideDemo.java
..........\...\poly
..........\...\....\PolymorphismDemo.java
..........\...\StringStack.java
..........\...\TestArrayList.java
..........\...\TestArrayListGeneric.java
..........\...\v1
..........\...\..\Circle.java
..........\...\..\GeometricObject.java
..........\...\..\Rectangle.java
..........\...\..\TestCircleRectangle.java
..........\...\v2
..........\...\..\Circle.java
..........\...\..\GeometricObject.java
..........\...\..\Rectangle.java
..........\...\..\TestCasting.java
..........\...\..\TestCircleRectangle.java