started ex Z4

src/exercises/ex_k_bis1/Customer.java

@@ -0,0 +1,17 @@
+package exercises.ex_k_bis1;
+
+public class Customer implements Runnable {
+    /*private String name;
+    private ServiceDesk serviceDesk;
+
+    public Customer(String name, ServiceDesk serviceDesk) {
+        this.name = name;
+        this.serviceDesk = serviceDesk;
+    }
+    */
+
+    @Override
+    public void run() {
+
+    }
+}

src/exercises/ex_k_bis1/TestServiceDesk.java

@@ -0,0 +1,22 @@
+package exercises.ex_k_bis1;
+
+public class TestServiceDesk {
+    public static void main(String[] args) {
+        /*
+        ServiceDesk serviceDesk = new ServiceDesk(2);
+        for (int j = 0; j<3; j++) {
+            new Thread(new ServiceRepresentative(serviceDesk), "Employee-"+ j).start();
+        }
+        // Start customer threads
+        for (int i = 0; i < 10; i++) { // 30 customers
+            String name = "Customer-" + i;
+            new Thread(new Customer(name, serviceDesk)).start();
+            try {
+                Thread.sleep((int) (Math.random() * 1000)); // Random arrival
+            } catch (InterruptedException e) {
+                Thread.currentThread().interrupt();
+            }
+        }
+        */
+    }
+}