Odczyt wg ID interaktywny

src/main/java/programy/P01_OdczytajWgId.java

 package programy;
 
+import java.util.Scanner;
+
 import jakarta.persistence.EntityManager;
 import jakarta.persistence.EntityManagerFactory;
 import jakarta.persistence.Persistence;
+import model.Department;
 import model.Employee;
 
 public class P01_OdczytajWgId {
@@ -12,17 +15,29 @@ public class P01_OdczytajWgId {
         
         EntityManagerFactory emf = Persistence.createEntityManagerFactory("hr_postgresql");
         EntityManager em = emf.createEntityManager();
-        
         System.out.println("Mam EntityManagera: " + em);
         
-        Integer id = 103;
+        Scanner sc = new Scanner(System.in);
+        while(true) {
+            System.out.print("Podaj ID pracownika (0 kończy program): ");            
+            Integer id = sc.nextInt();
+            if(id == 0) break;
             Employee emp = em.find(Employee.class, id);
             System.out.println("Odczytany obiekt: " + emp);
-        if(emp != null) {
+            if(emp == null) {
+                System.out.printf("Nie ma pracownika o id %d\n", id);
+                continue;
+            }
             System.out.printf("%s %s (%s) zarabia %s\n",
                     emp.getFirstName(), emp.getLastName(), emp.getJob().getJobTitle(), emp.getSalary());
+            Department dep = emp.getDepartment();
+            if(dep != null) {
+               System.out.printf("Departament %s, %s, %s, %s\n",
+                       dep.getDepartmentName(), dep.getLocation().getStreetAddress(),
+                       dep.getLocation().getCity(), dep.getLocation().getCountry().getCountryName()); 
             }        
-        
+        }
+        sc.close();
         em.close();
         emf.close();
         System.out.println("Koniec");