Question

Java - Car Dealership

Hey, so i am having a little trouble with my code, so in my dealer class each of the setName for the salesman have errors and im not sure why. Any and all help is greatly appreciated.

package app5;

import java.util.Scanner;
class Salesman {
private int ID;
private String name;
private double commRate;
private double totalComm;
private int numberOfSales;
}
class Car {
static int count = 0;
public String year;
public String model;
public String make;
public String vin;
public String color;
public double buyPrice;
public double sellPrice;

Car() {
count++; }

Car(String year, String model) {
this.year = year;
this.model = model;
count++;}

public void display() {
System.out.println("\n");
System.out.println("Car: " + year + " " + make + " " + model); // display for case 3
System.out.println("Vin: " + vin);
System.out.println("Color: " + color);
System.out.println("Pricer: " + sellPrice);
System.out.println();
}}

class Record {
public Car car;
public Salesman salesman;
public String date;
public double dealerProfit;

public Record() {}

public Record(Car car, Salesman salesman) {
this.car = car; //THIS MAY HAVE TO BE CHANGED TO this.c OR = c WE WILL SEE LATER
this.salesman = salesman;
} }

class Dealer {
Salesman salesman[] = new Salesman[3];
Car car[] = new Car[50];
Record record[] = new Record[100];
  
Dealer() {
Salesman fred = new Salesman(); //heres the salesman
fred.setName("Fred");
Salesman sally = new Salesman();
sally.setName("sally");
Salesman jordan = new Salesman();
jordan.setName("Jordan");
car[0] = new Car("1993", "Corrola"); //all the base cars
car[1] = new Car("1989", "Mustang");
car[2] = new Car("1991", "F-150");
car[3] = new Car("1992", "Toyota");
record[0] = new Record(car[0], fred); //each salesman selling that car
record[1] = new Record(car[1], fred);
record[2] = new Record(car[2], sally);
record[3] = new Record(car[3], jordan);
}
void menu() {
Scanner s = new Scanner(System.in);
System.out.println("1. Buy Car");
System.out.println("2. Sell Car");
System.out.println("3. Show Inventory");
System.out.println("4. Show Salesmen");
System.out.println("5. Show Sales Records");
System.out.println("6. Exit");
System.out.println("Choice: ");
int menuChoice = s.nextInt();

while (menuChoice <= 0 || menuChoice >= 7) {
System.out.println("Invalid Input, needs to be either 1, 2, or 3.");
}
switch (menuChoice) {
case 1:
//Buy Car - obtain all info from user on the car bought by
//the dealer and store it in a record. make a new object
//for the car bought, make a new record, update car and record arrays

//have user enter the info
//then validate info to make sure ALL of it is entered
//then add it one by one in the order the array is going to
Car c = new Car();
System.out.println("Enter year: ");
c.year = s.next();
System.out.println("Enter Make: ");
c.make = s.next();
System.out.println("Enter Model: ");
c.model = s.next();
System.out.println("Enter VIN#: ");
c.vin = s.next();
System.out.println("Enter Color: ");
c.color = s.next();
System.out.println("Enter Buy Price: ");
c.buyPrice = s.nextDouble();
System.out.println("Enter Sell Pricel: ");
c.sellPrice = s.nextDouble();
car[Car.count - 1] = c; //adds the input to the array
//record would be done the same way
Record r = new Record();
r.car = c;

break;
/*The user should ONLY be able to buy a car that is in inventory
Show a numbered list of cars in the inventory asnd let the user
choose a car and a salesman. Update the salesman object that sold
the car and update the record array for the sale.*/
case 2:
//SELL CAR
System.out.println("---------------------INVENTORY---------------------");
System.out.println("To select the car you want choose the number next to the listing.");
for (int i = 0; i < Car.count; i++) {
System.out.println("Car # " + Car.count);
car[i].display();
}
int sellmenuChoice = s.nextInt();
//here you need to have it then display that car.
System.out.println("You have chosen car # " + sellmenuChoice + "!");
System.out.println("Details about this vehicle will be shown below.");
System.out.println("-----------------------------------------------");
//USE DISPLAY METHOD FOR THIS
break;

case 3:
//SHOW INVENTORY
System.out.println("INVENTORY");

for (int i = 0; i < Car.count; i++) {
car[i].display();
}

break;

case 4:
//SHOW SALESMAN

break;

case 5:
//SHOW SALESMAN RECORDS

break;

case 6:
//EXIT
System.exit(0);
break;
}
}   
}

public class App5 {
public static void main(String[] args) {

Dealer d = new Dealer();
d.menu();
}
}

Answer 1

I have just override the method of setName from the package java.lang, and it worked, except that I don't have the file app5.java.

Here is the function:

void setName(String name) {
this.name = name;
}

Place this in the class salesman and everything should work as expected!!!