A program for calculating the area and perimeter of various shapes. The parent class Shape2D is an abstract class, which includes two methods for calculating perimeter and calculating area. Other shape circles (Circle), triangles (Triangle) and rectangles (Rectangle) are inherited from the Shape2D class. And Square inherits from the Rectangle class. Write test classes to calculate the area of these shapes.

Filename	Size	Update
TestForm\.classpath	427	2017-11-20
TestForm\.project	384	2017-11-20
TestForm\.settings\org.eclipse.jdt.core.prefs	629	2017-11-20
TestForm\bin\cn\edu\sicnu\cs\testform\FileFrame$1.class	840	2017-11-20
TestForm\bin\cn\edu\sicnu\cs\testform\FileFrame$2.class	840	2017-11-20
TestForm\bin\cn\edu\sicnu\cs\testform\FileFrame$3.class	585	2017-11-20
TestForm\bin\cn\edu\sicnu\cs\testform\FileFrame.class	6913	2017-11-20
TestForm\bin\cn\edu\sicnu\cs\testform\FileFrame.form	4808	2017-11-20
TestForm\bin\cn\edu\sicnu\cs\testform\MyFrame$1.class	826	2017-11-20
TestForm\bin\cn\edu\sicnu\cs\testform\MyFrame$2.class	826	2017-11-20
TestForm\bin\cn\edu\sicnu\cs\testform\MyFrame$3.class	826	2017-11-20
TestForm\bin\cn\edu\sicnu\cs\testform\MyFrame$4.class	924	2017-11-20
TestForm\bin\cn\edu\sicnu\cs\testform\MyFrame$5.class	577	2017-11-20
TestForm\bin\cn\edu\sicnu\cs\testform\MyFrame.class	8159	2017-11-20
TestForm\bin\cn\edu\sicnu\cs\testform\MyFrame.form	11201	2017-11-20
TestForm\lib\AbsoluteLayout.jar	2850	2017-11-20
TestForm\lib\swing-layout-1.0.3.jar	118103	2017-11-20
TestForm\src\cn\edu\sicnu\cs\testform\FileFrame.form	4808	2017-11-20
TestForm\src\cn\edu\sicnu\cs\testform\FileFrame.java	6536	2017-11-20
TestForm\src\cn\edu\sicnu\cs\testform\MyFrame.form	11201	2017-11-20
TestForm\src\cn\edu\sicnu\cs\testform\MyFrame.java	11138	2017-11-20
TestForm\bin\cn\edu\sicnu\cs\testform
TestForm\src\cn\edu\sicnu\cs\testform
TestForm\bin\cn\edu\sicnu\cs
TestForm\src\cn\edu\sicnu\cs
TestForm\bin\cn\edu\sicnu
TestForm\src\cn\edu\sicnu
TestForm\bin\cn\edu
TestForm\src\cn\edu
TestForm\bin\cn
TestForm\src\cn
TestForm\.settings
TestForm\bin
TestForm\lib
TestForm\src
TestForm

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