les_0 done

src/main/java/mate/academy/service/AuthenticationService.java

@@ -1,5 +1,7 @@
 package mate.academy.service;
 
+import mate.academy.model.User;
+
 public class AuthenticationService {
     /**
      * Imagine that some user wants to login to your site.
@@ -11,6 +13,11 @@ public class AuthenticationService {
      * Return false in any other cases.
      */
     public boolean login(String email, String password) {
+        UserService userServ = new UserService();
+        User user = userServ.findByEmail(email);
+        if (user != null && user.getPassword() == password) {
+            return  true;
+        }
         return false;
     }
 }

src/main/java/mate/academy/service/UserService.java

@@ -15,6 +15,13 @@ public class UserService {
      * Return <code>null</code> if there is no suitable user
      */
     public User findByEmail(String email) {
+        if (email != null) {
+            for (int i = 0; i < users.length; i++) {
+                if (users[i].getEmail() == email) {
+                    return users[i];
+                }
+            }
+        }
         return null;
     }
 }