Step by Step solution about How to resolve the algorithm Polymorphism step by step in the Julia programming language

This Julia code defines two mutable structs, Point and Circle, and provides custom getter and setter methods for each field. It also defines custom show methods to print the objects in a more user-friendly format.

Here's a breakdown of the code:

1. Defining the Point struct:

   mutable struct Point
      x::Float64
      y::Float64
   end

   This defines a mutable struct named Point with two fields: x and y, both of type Float64.

2. Custom show method for Point:

   Base.show(io::IO, p::Point) = print(io, "Point($(p.x), $(p.y))")

   This defines a custom show method for the Point struct. When you call show(p) on a Point object p, it will print "Point(x, y)" to the specified IO stream, where x and y are the values of the x and y fields, respectively.

3. Getter and setter methods for Point:

   getx(p::Point) = p.x
   gety(p::Point) = p.y
   setx(p::Point, x) = (p.x = x)
   sety(p::Point, y) = (p.y = y)

   These methods provide a way to access and modify the individual fields of a Point struct. For example, getx(p) returns the value of the x field of the Point object p, setx(p, x) sets the value of the x field to x.

4. Defining the Circle struct:

   mutable struct Circle
      x::Float64
      y::Float64
      r::Float64
   end

   This defines a mutable struct named Circle with three fields: x, y, and r, all of type Float64.

5. Custom show method for Circle:

   Base.show(io::IO, c::Circle) = print(io, "Circle($(c.x), $(c.y), $(c.r))")

   Similar to the Point struct, this defines a custom show method for the Circle struct, printing "Circle(x, y, r)" when show(c) is called on a Circle object c.

6. Getter and setter methods for Circle:

   getx(c::Circle) = c.x
   gety(c::Circle) = c.y
   getr(c::Circle) = c.r
   setx(c::Circle, x) = (c.x = x)
   sety(c::Circle, y) = (c.y = y)
   setr(c::Circle, r) = (c.r = r)

   These methods provide a way to access and modify the individual fields of a Circle struct. For instance, getx(c) returns the value of the x field of the Circle object c, and setx(c, x) sets the value of the x field to x.

mutable struct Point
	x::Float64
	y::Float64
end

Base.show(io::IO, p::Point) = print(io, "Point($(p.x), $(p.y))")

getx(p::Point) = p.x
gety(p::Point) = p.y

setx(p::Point, x) = (p.x = x)
sety(p::Point, y) = (p.y = y)

mutable struct Circle
	x::Float64
	y::Float64
	r::Float64
end

getx(c::Circle) = c.x
gety(c::Circle) = c.y
getr(c::Circle) = c.r

setx(c::Circle, x) = (c.x = x)
sety(c::Circle, y) = (c.y = y)
setr(c::Circle, r) = (c.r = r)

Base.show(io::IO, c::Circle) = print(io, "Circle($(c.x), $(c.y), $(c.r))")