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CON-1810-MARKDOWN-drawing-raid-for-Java-piscine (#2099)

* docs(Jart):add the subject jart
docs(Jart):add the audit of jart raid

* docs(Jart): add more question in the audit

* docs(Jart): add the function save in displayable interface

* docs(Jart):add interfaces to the example and change the variable name to displayable

* docs(Jart): add a question in the audit part

* docs(Jart): change the type of the variable from `Image` to `Displayable`

* refactor(Jart): change Displayable to Image

* docs(Jart): remove the method of runing the code
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  1. 71
      subjects/java/raids/Jart/README.md
  2. 27
      subjects/java/raids/Jart/audit/README.md
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      subjects/java/raids/Jart/example.png

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subjects/java/raids/Jart/README.md

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## Jart
### Instructions
The purpose of this exercise is to create an image like the example below:
![example](example.png)
You will need to do the following:
- Copy the code in the [usage](#usage) to your `Main.java`
You'll define the logic for creating and working with shapes in the geometrical_shapes package. Create the following interfaces:
- Drawable which contains the methods draw and getColor.
- Displayable which contains the methods display and save.
Define them according to the way they are called in the Main.java function.
In order to compile and run `Main.java`, you'll need to define some classes. You are free to implement all the shapes with whatever internal structure you see fit, but you must provide a constructor for all the shapes, which will be described below:
- `Point`: a new point should be created from two int values.
- `Line`: a new line should be created from references to two different points.
- `Triangle`: a new triangle should be created from references to three different points.
- `Rectangle`: a new rectangle should be created from references to two different points.
- `Circle`: a new circle should be created from a reference to a point representing the center, and an int value representing the circle's radius.
You'll also need to create the `random` method for `Line`, `Point`, and `Circle`. You should derive their signatures from the usage.
### Bonus
You may optionally implement the following shapes, including the classes and interfaces needed to draw them:
- Pentagon
- Cube
### Usage
```java
interface Displayable {
void display(int x, int y, Color color);
void save(String string);
}
interface Drawable {
void draw(Displayable displayable);
Color getColor();
}
public class Main {
public static void main(String[] args) {
Image image = new Image(1000, 1000);
Rectangle rectangle = new Rectangle(new Point(50, 50), new Point(300, 200));
rectangle.draw(image);
Triangle triangle = new Triangle(new Point(100, 100), new Point(900, 900), new Point(100, 900));
triangle.draw(image);
for (int i = 0; i < 50; i++) {
Circle circle = Circle.random(image.getWidth(), image.getHeight());
circle.draw(image);
}
image.save("image.png");
}
}
```
### Notions
- [java.awt](https://www.javatpoint.com/java-awt)

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#### Functional
##### Try to run the program
###### Does the program compile and run without any error or warning?
###### Does the program produce a png file called image.png?
##### Can you confirm that the interfaces Displayable and Drawable were created?
##### Can you confirm that the 'Displayable' interface is implemented in the 'Image' class?
##### Can you confirm that the 'Drawable' interface is implemented in the lines, circles, rectangles, and triangles classes?
##### Try to open the image.png
###### Does the image contain lines, circles, rectangles, and triangles?
###### Are the shapes drawn with different colors?
#### Bonus
###### +Can you draw a pentagon?
###### +Can you draw a cube?
###### +Did the student use default interface methods?

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