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Félix MARQUET
2025-09-05 16:34:16 +02:00
parent f9b608c11a
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46
ISEN/JAVA/CIPA4/Java Cours 1.md
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@@ -215,18 +215,60 @@ public enum Color
## Héritage ## Héritage
Déclaration d'un héritage Déclaration d'un héritage
```java ```java
public class Point
{
private int x;
private int y;
public setX(int x)
{
this.x = x;
}
public setY(int y)
{
this.y = y;
}
public Point(x, y)
{
this.setX(x);
this.setY(y);
}
}
public class Forme public class Forme
{ {
protected Point centre; protected Point centre;
public void afficher(){ System.out.println("Je suis une forme de centre " + centre); } public void afficher()
{
System.out.println("Je suis une forme de centre " + this.centre);
}
public void setCentre(Point centre)
{
this.centre = centre;
}
public Forme(Point centre)
{
this.setCentre(centre);
}
} }
public class Cercle extends Forme public class Cercle extends Forme
{ {
private float rayon;
@Override //permet de préciser qu’une méthode est une surcharge
public void afficher() public void afficher()
{ {
System.out.println("Je suis un cercle de centre " + centre.toString()); super.afficher();
System.out.println("Je suis un cercle de rayon " + this.rayon);
} }
public void setRayon(float rayon)
{
this.rayon = rayon;
}
public Cercle(Point centre, float rayon)
{
super(centre);
this.setRayon(rayon);
}
} }
``` ```