- Create a class called
Counter - Create a instance variable called
value. Initialize it to 0 - Implement a
incrmethod which increments value by 1 - Implement a
decrmethod which decrements value by 1 - Implement a
incrbymethod which accepts a integer, n and increments value by n - Implement a
decrbymethod which accepts a integer, n and decrements value by n
Create a Triangle class.
Initially this class will have an empty list of points. Add a add_point method which adds the point to the list of points. Add a perimeter method which calculates the perimeter of a triangle. Add a is_equal method which accepts another triangle object as an argument and checks whether the two triangles have the same list of points.
Create a triangle object, t1 and add the following points:
0, 0 0, 3 4, 0
Find its perimeter
Create another triangle object, t2 with the following points:
1, 2 2, 1 1, 5
Find its perimeter
Check whether t1 and t2 are equal
Create another triangle object, t3, with the following points:
1, 2
2, 1
1, 5
Do the following operations:
t1 == t3
t1.is_equal(t3)
t3.is_equal(t1)
Rename is_equal to __eq__:
Do the following operations
t1 == t3
-
Bob Martin SOLID Principles of Object Oriented and Agile Design - Watch from 16:00
-
Software Design - Introduction to SOLID Principles in 8 Minutes
Spike out the first version just make it work.
In the second version:
Create proper classes. Try to apply OOPs concepts and do it using minimum amount of code.
Check your work - total 5 files
- Create a DataExtractor class - which only extracts data. Pass arguments to customize
- Create a DataAnalyzer class - which only calculates the min diff. Pass arguments to customize.
- Create a Calculator class - which initializes the two classes above and executes.
- Soccer and Weather files - Create objects of Calculator class and pass arguments. Make sure you use named variables for column names. Do not pass 6 directly.