Tree Age Program Plan: • Import “Tkinter” module for creating the GUI programs. • Define the necessary named constants for creating the growth rings. • Define the class named “Treeclass”. ○ Define “init()” method for “Treeclass” class: ■ Create the main window using the “tkinter” module. ■ Create a canvas widget. ■ Create the ring1 using canvas widget using the “create_oval()” method. ■ Specify the text on the ring created using the canvas widget using the “create_text()” method. ■ Create the ring2 using canvas widget using the “create_oval()” method. ■ Specify the text on the ring created using the canvas widget using the “create_text()” method. ■ Create the ring3 using canvas widget using the “create_oval()” method. ■ Specify the text on the ring created using the canvas widget using the “create_text()” method. ■ Create the ring4 using canvas widget using the “create_oval()” method. ■ Specify the text on the ring created using the canvas widget using the “create_text()” method. ■ Create the ring5 using canvas widget using the “create_oval()” method. ■ Specify the text on the ring created using the canvas widget using the “create_text()” method. ■ Pack the canvas that is created using the “pack” method. ■ Call the main loop using the “tkinter” module. • Now, call the “Treeclass()” function.

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Chapter 13, Problem 9PE

Program Plan Intro

Tree Age

Program Plan:

• Import “Tkinter” module for creating the GUI programs.

• Define the necessary named constants for creating the growth rings.

• Define the class named “Treeclass”.

○ Define “init()” method for “Treeclass” class:

■ Create the main window using the “tkinter” module.

■ Create a canvas widget.

■ Create the ring1 using canvas widget using the “create_oval()” method.

■ Specify the text on the ring created using the canvas widget using the “create_text()” method.

■ Create the ring2 using canvas widget using the “create_oval()” method.

■ Specify the text on the ring created using the canvas widget using the “create_text()” method.

■ Create the ring3 using canvas widget using the “create_oval()” method.

■ Specify the text on the ring created using the canvas widget using the “create_text()” method.

■ Create the ring4 using canvas widget using the “create_oval()” method.

■ Specify the text on the ring created using the canvas widget using the “create_text()” method.

■ Create the ring5 using canvas widget using the “create_oval()” method.

■ Specify the text on the ring created using the canvas widget using the “create_text()” method.

■ Pack the canvas that is created using the “pack” method.

■ Call the main loop using the “tkinter” module.

• Now, call the “Treeclass()” function.

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