Lab 12: Classes

Points Possible: 100

Due: Thursday, November 21st

In this lab, we will write programs using Python classes.

Submission:

1. Submit a Python file for each of the programs.

Program 1: Triangle

Design a class named Triangle. The Triangle class contains:

• Three float data fields named side1, side2 and side3 to denote the three sides of the triangle.
• A constructor that creates a triangle with the specified side1, side2 and side3 with default values 1.0.
• A method named getArea() that returns the area of the triangle.
• A method named getPerimeter() that returns the perimeter of the triangle.

Write test code that prompts the user to enter three sides of a triangle. The program should create a triangle object with these sides and display the triangle’s area and perimeter.

Formula:

\[s = (side1 + side2 + side3) / 2\] \[area=\sqrt{s(s-side1)(s-side2)(s-side3)}\]

Save the program as triangle.py and attach it to the Blackboard lab assignment.

Draw a UML diagram for the Triangle class and attach it to the Blackboard lab assignment. You can take a picture of the diagram, or use an online tool.

Grading Rubric for the program:
(Comments: 5 points, class and methods: 30 points, UML: 5 points, test program: 5 points, UML: 5 points)
Total: 50 points

Program 2: Practice

Create a class Practice that contains the following data fields:

• list1
• dict1

Methods:

• __init__ that will initialize list1 and dict1.
• getList that will return list1
• setList that will set list1
• getDict that will return the dict1
• setDict that will set the dict1
• findMinList that returns the minimum values in list1.
• findMaxList that returns the maximum values in list1.
• findSumDict that returns the sum of values in dict1.

Write a test code that creates an instance of the Practice class and pass values for list and dictionary (you can use any arbitrary values). Print the minimum and maximum values in the list by calling the methods. Also, print the sum of values in dictionary by calling the findSumDict method.

Save the program as Practice.py and attach it to the Blackboard lab assignment.

Grading Rubric for the program:
(Comments: 5 points, class and functions: 40 points, test program: 5 points)
Total: 50 points