started ex Z4

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();
+            }
+        }
+        */
+    }
+}