POO

poo.java

abstract class Forme {
	protected String couleur;

	public void  changerCouleur(String  nouveauCouleur){
		this.couleur = nouveauCouleur;
	}

	protected abstract void deplacer(float dx, float dy);
}

class Cercle extends Forme {
	private float  x, y;

	public void deplacer(float dx, float dy){
		this.x = this.x + dx;
		this.y = this.y + dy;
	}
}

class Triangle extends Forme {
	private float x1, x2, x3;
	private float y1, y2, y3;

	public void deplacer(float dx, float dy) {
		this.x1 += dx;
		this.x2 += dx;
		this.x3 += dx;

		this.y1 += dy;
		this.y2 += dy;
		this.y3 += dy;
	}
} 

public static void main(String[] args){
	Forme cercle = new Cercle();
	Forme triangle = new Triangle();
	
	List<Forme> formes = new ArraysList<>();
	formes.add(cercle);
	formes.add(tringle);
	
	for(Forme forme:formes){
		forme.deplacer(5,7);
	}
}