Python Programming: An Introduction to Computer Science, 3rd Ed.
3rd Edition
ISBN: 9781590282755
Author: John Zelle
Publisher: Franklin, Beedle & Associates
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Expert Solution & Answer
Chapter 4, Problem 6MC
Program Description Answer
The command used to draw the graphics object shape into the graphics window win is given below:
shape.draw(win)
Hence, correct answer is option “D”.
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GUI
You will find the files needed for Problems 1 and 2 in the Module 8: Graphical User Interfaces
course content folder. The EvenOdd and Bagel files will help you with Problem
1.
Make the following changes to the Push Counter program:
Add 2 each time the button is pressed.
Change the title bar from Push Counter to Pushes x Two.
Change the button label from Push me! to Add Two.
Change the background color.
Change the size so the panel is higher than it is wide.
Change the label from Pushes: to Total =.
1.
2.
3.
4.
5.
6.
2.
Modify the Fahrenheit program so that it displays a button that when pressed causes the
conversion calculation to take place. The user will have the option of pressing Enter in
the text field or pressing the button. Have the listener that is already defined for the text
field also listen for the button push.
Q2. Create Python program using Graphical User Interface (GUI) that will:
1. Create a tkinter main window with specific title name for the window.
2. Apply geometry command according to your desired dimension of the
window.
3. Add background color to main window.
4. Add Canvas widget and give at least 4 options according to your choices.
5. Inside the canvas use the following STANDARD ITEMS CANVAS WIDGET
(Arc, Image, Line, Oval and Polygon) to design the canvas with:
a. Use Image as a background for the canvas.
b. Star design (any size) – apply 5 options
c. Rectangle (any size) – apply 5 options
d. Oblong any size) – apply 5 options
e. Triangle any size) – apply 5 options
Save the file using:
Getting Bigger.pdf
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Purpose
To review more advanced aspects of user interfaces and event handlers
Directions
Create an interface for a program that looks like the one in the first image below.
Then add an event handler to the JSlider that changes the font size of the text in the
JTextArea according to the value on the slider, as illustrated in the second image.
Note: These directions are intentionally vague. Use the internet and whatever other
resources you have available to try to piece together how to do this. Be sure to cite
any sources you use as comments in your code.
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Chapter 4 Solutions
Python Programming: An Introduction to Computer Science, 3rd Ed.
Ch. 4 - Prob. 1TFCh. 4 - Prob. 2TFCh. 4 - Prob. 3TFCh. 4 - Prob. 4TFCh. 4 - Prob. 5TFCh. 4 - Prob. 6TFCh. 4 - Prob. 7TFCh. 4 - Prob. 8TFCh. 4 - Prob. 9TFCh. 4 - Prob. 10TF
Ch. 4 - Prob. 1MCCh. 4 - Prob. 2MCCh. 4 - Prob. 3MCCh. 4 - Prob. 4MCCh. 4 - Prob. 5MCCh. 4 - Prob. 6MCCh. 4 - Prob. 7MCCh. 4 - Prob. 8MCCh. 4 - Prob. 9MCCh. 4 - Prob. 10MCCh. 4 - Prob. 1DCh. 4 - Prob. 3DCh. 4 - Prob. 1PECh. 4 - Prob. 2PECh. 4 - Prob. 3PECh. 4 - Prob. 7PECh. 4 - Prob. 8PECh. 4 - Prob. 9PECh. 4 - Prob. 10PECh. 4 - Prob. 11PE
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