Assignments

Shapes

Write a program that creates 2 custom struct types:
- triangle
- square
The square type should be a struct with a field called sideLength of type float64
The triangle type should be a struct with a field called height of type float64 and a field called base of type float64
Both types should have function called getArea that returns the calculated area of the square or triangle
- Area of Triangle = 0.5 base height
- Area of Square = sideLength * sideLength
Add a shape interface that defines a function called printArea
- This function should calculate the area of the given shape and print out to the terminal
- Design the interface so that the printArea function can be called with either a triangle or a square

Create a program that reads the contents of a text file then print its contents to the terminal
- The file to open should be provider as an argument to the program when it is executed at the terminal
- For example, go run main.go myfile.txt
To read-in the arguments provided to a program, you can reference the variable os.Args, which is a slice of strings
To open a file, check out the documentation for the Open function in the os package
What interfaces does the File type implement?
If the File type implements the Reader interface, you might be able to reuse that io.Copy function