ok

src/Cuisinier.java

@@ -7,6 +7,15 @@ public class Cuisinier extends Thread {
         this.stand= stand_de_cuisson;
     }
 
+    public void run(){
+         while(true){
+            Client client= stand.attendClient();
+            if(client!=  null){
+                faire_cuire(client);
+            }
+         }
+    }
+
     public void faire_cuire(Client client){
         try{
              long temps_cuire =new Random().nextInt(300 - 100) + 100;

src/Stand_de_cuisson.java

@@ -1,5 +1,8 @@
 public class Stand_de_cuisson {
-    public synchronized void finir_cuit(){
+    public synchronized void attendClient(){
         
     }
+    public synchronized void finir_cuit(Client client){
+        notifyAll();
+    }
 }