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using System; 2 using UserNamespace; // namespace 3 4 5 namespace UserNamespace 6 + { 7 8 9 // User class definition public abstract class User { // instance variables private string user_id; // user id protected string user_password; // user password // parametrized constructor public User (string id, string pass) { user_id = id; user_password = pass; } // verifyLogin method to verify the login cresentials public bool verifyLogin(string id, string pass) { // return true, if matches // otherwise, return false return user_id.Equals(id)&&user_password. Equals(pass); } // abstract method public abstract void updatePassword(string newPassword); // Administrator clas definition public class Administrator: User { // instance variable private string admin_name; // name of admin // parametrized constructor public Administrator (string name, string id, string pass):base (id, pass) admin_name = name; 38 } 39 // updatePassword method to update the password of user public override void updatePassword (string newPassword) 40 41- { 42 user_password = newPassword; 43 } // updateAdminName method to update the name of the admin public void updateAdminName(string name) 45 46- { 47 admin_name = name; 48 } 49 50 51 // Testing class definition 52 public class Testing 53- 54 // main method 55 public static void Main() 56 { 57 // create an object of Administrator class 58 Administrator a = new Administrator ("Katty","kat123","katty123!"); // print the result 59 50 Console.WriteLine(a.verifyLogin("kat123","katty123!")); 51 52 10 11 12 13 14 15- 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36- 37

using System; 2 using UserNamespace; // namespace 3 4 5 namespace UserNamespace 6 + { 7 8 9 // User class definition public abstract class User { // instance variables private string user_id; // user id protected string user_password; // user password // parametrized constructor public User (string id, string pass) { user_id = id; user_password = pass; } // verifyLogin method to verify the login cresentials public bool verifyLogin(string id, string pass) { // return true, if matches // otherwise, return false return user_id.Equals(id)&&user_password. Equals(pass); } // abstract method public abstract void updatePassword(string newPassword); // Administrator clas definition public class Administrator: User { // instance variable private string admin_name; // name of admin // parametrized constructor public Administrator (string name, string id, string pass):base (id, pass) admin_name = name; 38 } 39 // updatePassword method to update the password of user public override void updatePassword (string newPassword) 40 41- { 42 user_password = newPassword; 43 } // updateAdminName method to update the name of the admin public void updateAdminName(string name) 45 46- { 47 admin_name = name; 48 } 49 50 51 // Testing class definition 52 public class Testing 53- 54 // main method 55 public static void Main() 56 { 57 // create an object of Administrator class 58 Administrator a = new Administrator ("Katty","kat123","katty123!"); // print the result 59 50 Console.WriteLine(a.verifyLogin("kat123","katty123!")); 51 52 10 11 12 13 14 15- 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36- 37

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Can you please fix the code ? see picture for error thank you

Result CPU Time: 0.02 sec(s), Memory: 16348 kilobyte(s) Compilation succeeded - 1 warning(s) True jdoodle.cs(33,24): warning CS0414: The private field `UserNamespace. Administrator.admin_name' is assigned but its value is never used
Transcribed Image Text:Result CPU Time: 0.02 sec(s), Memory: 16348 kilobyte(s) Compilation succeeded - 1 warning(s) True jdoodle.cs(33,24): warning CS0414: The private field `UserNamespace. Administrator.admin_name' is assigned but its value is never used
1 using System; 2 using UserNamespace; // namespace 3 4 5 namespace UserNamespace 6 { 7 8 Nm tin c LO CO 9 ▾ 10 11 12 13 14 15 16 17 18 19 20 21 - 22 23 24 25 26 27 28 29 30 31 ▾ 32 33 34 35 36 - 37 38 39 40 41- 42 43 44 45 46 - 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 // User class definition public abstract class User { // instance variables private string user_id; // user id protected string user_password; // user password // parametrized constructor public User(string id, string pass) { user_id = id; user_password = pass; } // verifyLogin method to verify the login cresentials public bool verifyLogin(string id, string pass) { // return true, if matches // otherwise, return false return user_id.Equals(id)&&user_password. Equals(pass); // abstract method public abstract void updatePassword (string newPassword); } // Administrator clas definition public class Administrator: User // instance variable private string admin_name; // name of admin // parametrized constructor public Administrator (string name, string id, string pass):base(id, pass) { admin_name = name; } // updatePassword method to update the password of user public override void updatePassword(string newPassword) { user_password = newPassword; } // updateAdminName method to update the name of the admin public void updateAdminName(string name) admin_name name; } } // Testing class definition public class Testing // main method public static void Main() // create an object of Administrator class Administrator a = new Administrator ("Katty","kat123","katty123!"); // print the result Console.WriteLine(a.verifyLogin("kat123","katty123!")); }
Transcribed Image Text:1 using System; 2 using UserNamespace; // namespace 3 4 5 namespace UserNamespace 6 { 7 8 Nm tin c LO CO 9 ▾ 10 11 12 13 14 15 16 17 18 19 20 21 - 22 23 24 25 26 27 28 29 30 31 ▾ 32 33 34 35 36 - 37 38 39 40 41- 42 43 44 45 46 - 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 // User class definition public abstract class User { // instance variables private string user_id; // user id protected string user_password; // user password // parametrized constructor public User(string id, string pass) { user_id = id; user_password = pass; } // verifyLogin method to verify the login cresentials public bool verifyLogin(string id, string pass) { // return true, if matches // otherwise, return false return user_id.Equals(id)&&user_password. Equals(pass); // abstract method public abstract void updatePassword (string newPassword); } // Administrator clas definition public class Administrator: User // instance variable private string admin_name; // name of admin // parametrized constructor public Administrator (string name, string id, string pass):base(id, pass) { admin_name = name; } // updatePassword method to update the password of user public override void updatePassword(string newPassword) { user_password = newPassword; } // updateAdminName method to update the name of the admin public void updateAdminName(string name) admin_name name; } } // Testing class definition public class Testing // main method public static void Main() // create an object of Administrator class Administrator a = new Administrator ("Katty","kat123","katty123!"); // print the result Console.WriteLine(a.verifyLogin("kat123","katty123!")); }
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