Mixing
I'm trying to write a class that stores an array list and has multiple methods
-1
I have to write a program that interacts with the user and to add and review airline reservations. I'm writing this class here call ReservationSystem and I need to create the following methods:
addReservation() that takes as input first name, last name, price, seat number, and seat letter and creates a Reservation with this info, then I need to add the reservation to the list of reservations. Next I need to create another addReservation() method that prompts the user for the info needed to make a new reservation and add this reservation to the list of reservations. Next I need to create a method viewReservations() that prints all reservations using System.out and I have to use my toString() method provided by Reservation class. For some reason it's not seeing my String firstName variable as a
String in my viewReservations() method. Also how do I combine all my inputs into one variable, in this code I've just been using + to combine the inputs, not sure if that's correct.
ReservationSystem class:
package finalproject;
import java.util.*;
public class ReservationSystem {
ArrayList<String> reservations = new ArrayList<>();
public String addReservation(String firstName, String lastName, String
price, String seatNumber, String seatLetter){
String reservation = firstName + lastName + price + seatNumber +
seatLetter;
reservations.add(reservation);
return reservation;
}
public void addReservation(){
Scanner s = new Scanner(System.in);
System.out.print("Enter new reservation: ");
String reservation = s.nextLine();
reservations.add(reservation);
}
public void viewReservation(){
Reservation res = new Reservation(String firstName, String lastName,
String price, String seatNumber, String seatLetter);
res.toString(firstName, lastName, String, seatNumber, seatNumber);
}
}
Reservation Class:
package finalproject;
public class Reservation {
private String firstName;
private String lastName;
private String price;
private String seatNumber;
private String seatLetter;
public Reservation(String firstName, String lastName){
this.firstName = firstName;
this.lastName = lastName;
}
/**
*
* @param price
*/
public Reservation(String price){
this.price = price;
}
public Reservation(String seatNumber){
this.seatNumber = seatNumber;
}
public Reservation(String seatLetter){
this.seatLetter = seatLetter;
}
/**
*
* @param firstName
* @param lastName
* @param price
* @param seatNumber
* @param seatLetter
* @return
*/
public String toString(String firstName, String lastName, String price,
String seatNumber, String seatLetter){
String info = firstName + lastName + price + seatNumber + seatLetter;
return info;
}
/**
*
* @param price
* @return
*/
public String getPrice(String price){
return price;
}
}
java arrays class
asked Nov 19 '18 at 19:47
Matt L.Matt L.
278
add a comment |
-1
I have to write a program that interacts with the user and to add and review airline reservations. I'm writing this class here call ReservationSystem and I need to create the following methods:
addReservation() that takes as input first name, last name, price, seat number, and seat letter and creates a Reservation with this info, then I need to add the reservation to the list of reservations. Next I need to create another addReservation() method that prompts the user for the info needed to make a new reservation and add this reservation to the list of reservations. Next I need to create a method viewReservations() that prints all reservations using System.out and I have to use my toString() method provided by Reservation class. For some reason it's not seeing my String firstName variable as a
String in my viewReservations() method. Also how do I combine all my inputs into one variable, in this code I've just been using + to combine the inputs, not sure if that's correct.
ReservationSystem class:
package finalproject;
import java.util.*;
public class ReservationSystem {
ArrayList<String> reservations = new ArrayList<>();
public String addReservation(String firstName, String lastName, String
price, String seatNumber, String seatLetter){
String reservation = firstName + lastName + price + seatNumber +
seatLetter;
reservations.add(reservation);
return reservation;
}
public void addReservation(){
Scanner s = new Scanner(System.in);
System.out.print("Enter new reservation: ");
String reservation = s.nextLine();
reservations.add(reservation);
}
public void viewReservation(){
Reservation res = new Reservation(String firstName, String lastName,
String price, String seatNumber, String seatLetter);
res.toString(firstName, lastName, String, seatNumber, seatNumber);
}
}
Reservation Class:
package finalproject;
public class Reservation {
private String firstName;
private String lastName;
private String price;
private String seatNumber;
private String seatLetter;
public Reservation(String firstName, String lastName){
this.firstName = firstName;
this.lastName = lastName;
}
/**
*
* @param price
*/
public Reservation(String price){
this.price = price;
}
public Reservation(String seatNumber){
this.seatNumber = seatNumber;
}
public Reservation(String seatLetter){
this.seatLetter = seatLetter;
}
/**
*
* @param firstName
* @param lastName
* @param price
* @param seatNumber
* @param seatLetter
* @return
*/
public String toString(String firstName, String lastName, String price,
String seatNumber, String seatLetter){
String info = firstName + lastName + price + seatNumber + seatLetter;
return info;
}
/**
*
* @param price
* @return
*/
public String getPrice(String price){
return price;
}
}
java arrays class
asked Nov 19 '18 at 19:47
Matt L.Matt L.
278
You should have aList<Reservation>instead ofArrayList<String>and add theReservationobjects, which need to have a constructor that takes all the parameters (the code here won't even compile). ThetoString()shouldn't take any parameters; it should assemble the result from the fields. It's fine to concatenate them with+but you probably want to put spaces between them.
– David Conrad
Nov 19 '18 at 19:52
add a comment |
-1
-1
-1
I have to write a program that interacts with the user and to add and review airline reservations. I'm writing this class here call ReservationSystem and I need to create the following methods:
addReservation() that takes as input first name, last name, price, seat number, and seat letter and creates a Reservation with this info, then I need to add the reservation to the list of reservations. Next I need to create another addReservation() method that prompts the user for the info needed to make a new reservation and add this reservation to the list of reservations. Next I need to create a method viewReservations() that prints all reservations using System.out and I have to use my toString() method provided by Reservation class. For some reason it's not seeing my String firstName variable as a
String in my viewReservations() method. Also how do I combine all my inputs into one variable, in this code I've just been using + to combine the inputs, not sure if that's correct.
ReservationSystem class:
package finalproject;
import java.util.*;
public class ReservationSystem {
ArrayList<String> reservations = new ArrayList<>();
public String addReservation(String firstName, String lastName, String
price, String seatNumber, String seatLetter){
String reservation = firstName + lastName + price + seatNumber +
seatLetter;
reservations.add(reservation);
return reservation;
}
public void addReservation(){
Scanner s = new Scanner(System.in);
System.out.print("Enter new reservation: ");
String reservation = s.nextLine();
reservations.add(reservation);
}
public void viewReservation(){
Reservation res = new Reservation(String firstName, String lastName,
String price, String seatNumber, String seatLetter);
res.toString(firstName, lastName, String, seatNumber, seatNumber);
}
}
Reservation Class:
package finalproject;
public class Reservation {
private String firstName;
private String lastName;
private String price;
private String seatNumber;
private String seatLetter;
public Reservation(String firstName, String lastName){
this.firstName = firstName;
this.lastName = lastName;
}
/**
*
* @param price
*/
public Reservation(String price){
this.price = price;
}
public Reservation(String seatNumber){
this.seatNumber = seatNumber;
}
public Reservation(String seatLetter){
this.seatLetter = seatLetter;
}
/**
*
* @param firstName
* @param lastName
* @param price
* @param seatNumber
* @param seatLetter
* @return
*/
public String toString(String firstName, String lastName, String price,
String seatNumber, String seatLetter){
String info = firstName + lastName + price + seatNumber + seatLetter;
return info;
}
/**
*
* @param price
* @return
*/
public String getPrice(String price){
return price;
}
}
java arrays class
asked Nov 19 '18 at 19:47
Matt L.Matt L.
278
I have to write a program that interacts with the user and to add and review airline reservations. I'm writing this class here call ReservationSystem and I need to create the following methods:
addReservation() that takes as input first name, last name, price, seat number, and seat letter and creates a Reservation with this info, then I need to add the reservation to the list of reservations. Next I need to create another addReservation() method that prompts the user for the info needed to make a new reservation and add this reservation to the list of reservations. Next I need to create a method viewReservations() that prints all reservations using System.out and I have to use my toString() method provided by Reservation class. For some reason it's not seeing my String firstName variable as a
String in my viewReservations() method. Also how do I combine all my inputs into one variable, in this code I've just been using + to combine the inputs, not sure if that's correct.
ReservationSystem class:
package finalproject;
import java.util.*;
public class ReservationSystem {
ArrayList<String> reservations = new ArrayList<>();
public String addReservation(String firstName, String lastName, String
price, String seatNumber, String seatLetter){
String reservation = firstName + lastName + price + seatNumber +
seatLetter;
reservations.add(reservation);
return reservation;
}
public void addReservation(){
Scanner s = new Scanner(System.in);
System.out.print("Enter new reservation: ");
String reservation = s.nextLine();
reservations.add(reservation);
}
public void viewReservation(){
Reservation res = new Reservation(String firstName, String lastName,
String price, String seatNumber, String seatLetter);
res.toString(firstName, lastName, String, seatNumber, seatNumber);
}
}
Reservation Class:
package finalproject;
public class Reservation {
private String firstName;
private String lastName;
private String price;
private String seatNumber;
private String seatLetter;
public Reservation(String firstName, String lastName){
this.firstName = firstName;
this.lastName = lastName;
}
/**
*
* @param price
*/
public Reservation(String price){
this.price = price;
}
public Reservation(String seatNumber){
this.seatNumber = seatNumber;
}
public Reservation(String seatLetter){
this.seatLetter = seatLetter;
}
/**
*
* @param firstName
* @param lastName
* @param price
* @param seatNumber
* @param seatLetter
* @return
*/
public String toString(String firstName, String lastName, String price,
String seatNumber, String seatLetter){
String info = firstName + lastName + price + seatNumber + seatLetter;
return info;
}
/**
*
* @param price
* @return
*/
public String getPrice(String price){
return price;
}
}
java arrays class
java arrays class
asked Nov 19 '18 at 19:47
Matt L.Matt L.
278
asked Nov 19 '18 at 19:47
Matt L.Matt L.
278
asked Nov 19 '18 at 19:47
Matt L.Matt L.
278
asked Nov 19 '18 at 19:47
Matt L.Matt L.
278
asked Nov 19 '18 at 19:47
Matt L.Matt L.
278
278
You should have aList<Reservation>instead ofArrayList<String>and add theReservationobjects, which need to have a constructor that takes all the parameters (the code here won't even compile). ThetoString()shouldn't take any parameters; it should assemble the result from the fields. It's fine to concatenate them with+but you probably want to put spaces between them.
– David Conrad
Nov 19 '18 at 19:52
add a comment |
You should have aList<Reservation>instead ofArrayList<String>and add theReservationobjects, which need to have a constructor that takes all the parameters (the code here won't even compile). ThetoString()shouldn't take any parameters; it should assemble the result from the fields. It's fine to concatenate them with+but you probably want to put spaces between them.
– David Conrad
Nov 19 '18 at 19:52
You should have a
List<Reservation> instead of ArrayList<String> and add the Reservation objects, which need to have a constructor that takes all the parameters (the code here won't even compile). The toString() shouldn't take any parameters; it should assemble the result from the fields. It's fine to concatenate them with + but you probably want to put spaces between them.– David Conrad
Nov 19 '18 at 19:52
You should have a
List<Reservation> instead of ArrayList<String> and add the Reservation objects, which need to have a constructor that takes all the parameters (the code here won't even compile). The toString() shouldn't take any parameters; it should assemble the result from the fields. It's fine to concatenate them with + but you probably want to put spaces between them.– David Conrad
Nov 19 '18 at 19:52
add a comment |
1 Answer
1
active
oldest
votes
1
Reservation class
public class Reservation {
private String firstName;
private String lastName;
private float price;
private int seatNumber;
private char seatLetter;
// Constructor. Aligns values to the fields.
public Reservation(String firstName, String lastName,
float price, int seatNumber, char seatLetter){
this.firstName = firstName;
this.lastName = lastName;
this.price = price;
this.seatNumber = seatNumber;
this.seatLetter = seatLetter;
}
// Returns a string with the values of the fields.
public String toString(){
return firstName + " " + lastName
+ "nPrice: " + price
+ "nSeat: " + seatLetter + seatNumber;
}
// Returns the value of seatLetter
public char getSeatLetter() {
return seatLetter;
}
// Returns the value of seatNumber
public int getSeatNumber() {
return seatNumber;
}
}
ReservationSystem class
import java.util.ArrayList;
import java.util.List;
public class ReservationSystem {
List<Reservation> reservations = new ArrayList<>();
//Adds a Reservation object to the list
public void addReservation(Reservation reservation){
reservations.add(reservation);
}
// Prints a Reservation from the list based on seat number and seat letter
public void viewReservation(int seatNumber, char seatLetter){
for(Reservation res : reservations){
// if seat number and seat letter dont match continue to the next reservation
if(res.getSeatNumber() != seatNumber && res.getSeatLetter() != seatLetter){ continue; }
System.out.println(res.toString());
return;
}
}
// Prints all the Reservation objects of the list
public void viewAllReservations(){
for(Reservation res : reservations){
System.out.println(res.toString() + "n");
}
}
}
in your Main class
public static void main(String args) {
ReservationSystem resSystem = new ReservationSystem();
//Getting the values for a new reservation from user
Scanner sc = new Scanner(System.in);
System.out.println("Enter First Name: ");
String firstName = sc.nextLine();
System.out.println("Enter Last Name: ");
String lastName = sc.nextLine();
System.out.println("Enter Price: ");
float price = sc.nextFloat();
System.out.println("Enter Seat Number: ");
int seatNumber = sc.nextInt();
System.out.println("Enter Seat Letter: ");
char seatLetter = sc.next().charAt(0);
sc.close();
// Adding new reservation object to the list
resSystem.addReservation(new Reservation(firstName, lastName, price, seatNumber, seatLetter));
// Printing All the reservations from the list
resSystem.viewAllReservations();
}
answered Nov 19 '18 at 21:01
oskozachoskozach
6615
Please improve your answer by explaining what you have done in words. Just dumping some code isn’t very helpful
– Joakim Danielson
Nov 19 '18 at 21:54
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
1
Reservation class
public class Reservation {
private String firstName;
private String lastName;
private float price;
private int seatNumber;
private char seatLetter;
// Constructor. Aligns values to the fields.
public Reservation(String firstName, String lastName,
float price, int seatNumber, char seatLetter){
this.firstName = firstName;
this.lastName = lastName;
this.price = price;
this.seatNumber = seatNumber;
this.seatLetter = seatLetter;
}
// Returns a string with the values of the fields.
public String toString(){
return firstName + " " + lastName
+ "nPrice: " + price
+ "nSeat: " + seatLetter + seatNumber;
}
// Returns the value of seatLetter
public char getSeatLetter() {
return seatLetter;
}
// Returns the value of seatNumber
public int getSeatNumber() {
return seatNumber;
}
}
ReservationSystem class
import java.util.ArrayList;
import java.util.List;
public class ReservationSystem {
List<Reservation> reservations = new ArrayList<>();
//Adds a Reservation object to the list
public void addReservation(Reservation reservation){
reservations.add(reservation);
}
// Prints a Reservation from the list based on seat number and seat letter
public void viewReservation(int seatNumber, char seatLetter){
for(Reservation res : reservations){
// if seat number and seat letter dont match continue to the next reservation
if(res.getSeatNumber() != seatNumber && res.getSeatLetter() != seatLetter){ continue; }
System.out.println(res.toString());
return;
}
}
// Prints all the Reservation objects of the list
public void viewAllReservations(){
for(Reservation res : reservations){
System.out.println(res.toString() + "n");
}
}
}
in your Main class
public static void main(String args) {
ReservationSystem resSystem = new ReservationSystem();
//Getting the values for a new reservation from user
Scanner sc = new Scanner(System.in);
System.out.println("Enter First Name: ");
String firstName = sc.nextLine();
System.out.println("Enter Last Name: ");
String lastName = sc.nextLine();
System.out.println("Enter Price: ");
float price = sc.nextFloat();
System.out.println("Enter Seat Number: ");
int seatNumber = sc.nextInt();
System.out.println("Enter Seat Letter: ");
char seatLetter = sc.next().charAt(0);
sc.close();
// Adding new reservation object to the list
resSystem.addReservation(new Reservation(firstName, lastName, price, seatNumber, seatLetter));
// Printing All the reservations from the list
resSystem.viewAllReservations();
}
answered Nov 19 '18 at 21:01
oskozachoskozach
6615
Please improve your answer by explaining what you have done in words. Just dumping some code isn’t very helpful
– Joakim Danielson
Nov 19 '18 at 21:54
add a comment |
1
Reservation class
public class Reservation {
private String firstName;
private String lastName;
private float price;
private int seatNumber;
private char seatLetter;
// Constructor. Aligns values to the fields.
public Reservation(String firstName, String lastName,
float price, int seatNumber, char seatLetter){
this.firstName = firstName;
this.lastName = lastName;
this.price = price;
this.seatNumber = seatNumber;
this.seatLetter = seatLetter;
}
// Returns a string with the values of the fields.
public String toString(){
return firstName + " " + lastName
+ "nPrice: " + price
+ "nSeat: " + seatLetter + seatNumber;
}
// Returns the value of seatLetter
public char getSeatLetter() {
return seatLetter;
}
// Returns the value of seatNumber
public int getSeatNumber() {
return seatNumber;
}
}
ReservationSystem class
import java.util.ArrayList;
import java.util.List;
public class ReservationSystem {
List<Reservation> reservations = new ArrayList<>();
//Adds a Reservation object to the list
public void addReservation(Reservation reservation){
reservations.add(reservation);
}
// Prints a Reservation from the list based on seat number and seat letter
public void viewReservation(int seatNumber, char seatLetter){
for(Reservation res : reservations){
// if seat number and seat letter dont match continue to the next reservation
if(res.getSeatNumber() != seatNumber && res.getSeatLetter() != seatLetter){ continue; }
System.out.println(res.toString());
return;
}
}
// Prints all the Reservation objects of the list
public void viewAllReservations(){
for(Reservation res : reservations){
System.out.println(res.toString() + "n");
}
}
}
in your Main class
public static void main(String args) {
ReservationSystem resSystem = new ReservationSystem();
//Getting the values for a new reservation from user
Scanner sc = new Scanner(System.in);
System.out.println("Enter First Name: ");
String firstName = sc.nextLine();
System.out.println("Enter Last Name: ");
String lastName = sc.nextLine();
System.out.println("Enter Price: ");
float price = sc.nextFloat();
System.out.println("Enter Seat Number: ");
int seatNumber = sc.nextInt();
System.out.println("Enter Seat Letter: ");
char seatLetter = sc.next().charAt(0);
sc.close();
// Adding new reservation object to the list
resSystem.addReservation(new Reservation(firstName, lastName, price, seatNumber, seatLetter));
// Printing All the reservations from the list
resSystem.viewAllReservations();
}
answered Nov 19 '18 at 21:01
oskozachoskozach
6615
Please improve your answer by explaining what you have done in words. Just dumping some code isn’t very helpful
– Joakim Danielson
Nov 19 '18 at 21:54
add a comment |
1
1
1
Reservation class
public class Reservation {
private String firstName;
private String lastName;
private float price;
private int seatNumber;
private char seatLetter;
// Constructor. Aligns values to the fields.
public Reservation(String firstName, String lastName,
float price, int seatNumber, char seatLetter){
this.firstName = firstName;
this.lastName = lastName;
this.price = price;
this.seatNumber = seatNumber;
this.seatLetter = seatLetter;
}
// Returns a string with the values of the fields.
public String toString(){
return firstName + " " + lastName
+ "nPrice: " + price
+ "nSeat: " + seatLetter + seatNumber;
}
// Returns the value of seatLetter
public char getSeatLetter() {
return seatLetter;
}
// Returns the value of seatNumber
public int getSeatNumber() {
return seatNumber;
}
}
ReservationSystem class
import java.util.ArrayList;
import java.util.List;
public class ReservationSystem {
List<Reservation> reservations = new ArrayList<>();
//Adds a Reservation object to the list
public void addReservation(Reservation reservation){
reservations.add(reservation);
}
// Prints a Reservation from the list based on seat number and seat letter
public void viewReservation(int seatNumber, char seatLetter){
for(Reservation res : reservations){
// if seat number and seat letter dont match continue to the next reservation
if(res.getSeatNumber() != seatNumber && res.getSeatLetter() != seatLetter){ continue; }
System.out.println(res.toString());
return;
}
}
// Prints all the Reservation objects of the list
public void viewAllReservations(){
for(Reservation res : reservations){
System.out.println(res.toString() + "n");
}
}
}
in your Main class
public static void main(String args) {
ReservationSystem resSystem = new ReservationSystem();
//Getting the values for a new reservation from user
Scanner sc = new Scanner(System.in);
System.out.println("Enter First Name: ");
String firstName = sc.nextLine();
System.out.println("Enter Last Name: ");
String lastName = sc.nextLine();
System.out.println("Enter Price: ");
float price = sc.nextFloat();
System.out.println("Enter Seat Number: ");
int seatNumber = sc.nextInt();
System.out.println("Enter Seat Letter: ");
char seatLetter = sc.next().charAt(0);
sc.close();
// Adding new reservation object to the list
resSystem.addReservation(new Reservation(firstName, lastName, price, seatNumber, seatLetter));
// Printing All the reservations from the list
resSystem.viewAllReservations();
}
answered Nov 19 '18 at 21:01
oskozachoskozach
6615
Reservation class
public class Reservation {
private String firstName;
private String lastName;
private float price;
private int seatNumber;
private char seatLetter;
// Constructor. Aligns values to the fields.
public Reservation(String firstName, String lastName,
float price, int seatNumber, char seatLetter){
this.firstName = firstName;
this.lastName = lastName;
this.price = price;
this.seatNumber = seatNumber;
this.seatLetter = seatLetter;
}
// Returns a string with the values of the fields.
public String toString(){
return firstName + " " + lastName
+ "nPrice: " + price
+ "nSeat: " + seatLetter + seatNumber;
}
// Returns the value of seatLetter
public char getSeatLetter() {
return seatLetter;
}
// Returns the value of seatNumber
public int getSeatNumber() {
return seatNumber;
}
}
ReservationSystem class
import java.util.ArrayList;
import java.util.List;
public class ReservationSystem {
List<Reservation> reservations = new ArrayList<>();
//Adds a Reservation object to the list
public void addReservation(Reservation reservation){
reservations.add(reservation);
}
// Prints a Reservation from the list based on seat number and seat letter
public void viewReservation(int seatNumber, char seatLetter){
for(Reservation res : reservations){
// if seat number and seat letter dont match continue to the next reservation
if(res.getSeatNumber() != seatNumber && res.getSeatLetter() != seatLetter){ continue; }
System.out.println(res.toString());
return;
}
}
// Prints all the Reservation objects of the list
public void viewAllReservations(){
for(Reservation res : reservations){
System.out.println(res.toString() + "n");
}
}
}
in your Main class
public static void main(String args) {
ReservationSystem resSystem = new ReservationSystem();
//Getting the values for a new reservation from user
Scanner sc = new Scanner(System.in);
System.out.println("Enter First Name: ");
String firstName = sc.nextLine();
System.out.println("Enter Last Name: ");
String lastName = sc.nextLine();
System.out.println("Enter Price: ");
float price = sc.nextFloat();
System.out.println("Enter Seat Number: ");
int seatNumber = sc.nextInt();
System.out.println("Enter Seat Letter: ");
char seatLetter = sc.next().charAt(0);
sc.close();
// Adding new reservation object to the list
resSystem.addReservation(new Reservation(firstName, lastName, price, seatNumber, seatLetter));
// Printing All the reservations from the list
resSystem.viewAllReservations();
}
answered Nov 19 '18 at 21:01
oskozachoskozach
6615
edited Nov 19 '18 at 22:37
answered Nov 19 '18 at 21:01
oskozachoskozach
6615
answered Nov 19 '18 at 21:01
oskozachoskozach
6615
answered Nov 19 '18 at 21:01
oskozachoskozach
6615
6615
Please improve your answer by explaining what you have done in words. Just dumping some code isn’t very helpful
– Joakim Danielson
Nov 19 '18 at 21:54
add a comment |
Please improve your answer by explaining what you have done in words. Just dumping some code isn’t very helpful
– Joakim Danielson
Nov 19 '18 at 21:54
Please improve your answer by explaining what you have done in words. Just dumping some code isn’t very helpful
– Joakim Danielson
Nov 19 '18 at 21:54
Please improve your answer by explaining what you have done in words. Just dumping some code isn’t very helpful
– Joakim Danielson
Nov 19 '18 at 21:54
add a comment |
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You should have a
List<Reservation>instead ofArrayList<String>and add theReservationobjects, which need to have a constructor that takes all the parameters (the code here won't even compile). ThetoString()shouldn't take any parameters; it should assemble the result from the fields. It's fine to concatenate them with+but you probably want to put spaces between them.– David Conrad
Nov 19 '18 at 19:52