Proterty color Interior + prix pour les Part

src/fr/impl/Parts/Exterior.java

@@ -1,11 +1,46 @@
 package src.fr.impl.Parts;
 
+import java.util.HashSet;
+import java.util.Optional;
+import java.util.Set;
+
 import src.fr.impl.CategoryImpl;
 import src.fr.impl.PartImpl;
 import src.fr.impl.PartTypeImpl;
 
-public class Exterior extends PartImpl {     
-     public Exterior(String name, CategoryImpl category){
-          super(new PartTypeImpl(name,Engine.class, category));
+public class Exterior extends PartImpl {  
+
+     private static final Set<String> colorSet;
+     static {
+          colorSet = new HashSet<>();
+          colorSet.add("white");
+          colorSet.add("green");
+          colorSet.add("red");
+          colorSet.add("blue");
+          colorSet.add("green");
+          colorSet.add("gray");
+      }
+
+
+     public Exterior(String name, CategoryImpl category, int price){
+          super(new PartTypeImpl(name,Engine.class, category),price);
+
+          Set<String> l = new HashSet<String>();
+          l.add("red");
+          this.addProperty("color", () -> getColor(), p -> setColor(p), colorSet);
+     }
+
+
+     public String getColor(){
+          String result = "white";
+          Optional<String> color = this.getProperty("color");
+          if(color.isPresent()){
+               result = color.get();
+          }
+          return result;
+     }
+
+     public void setColor(String newColor){
+          this.setProperty("color",newColor);
      }
 }