Taxi program

[gonzales38]

Dear All,
I am a beginner in Java and would need your assistance with this assignment.
I have started PART A but I am not sure about how to proceed with PART B as we've not been taught and I dont know it either.

Submission is on Friday 2nd February 2007.

I await your responses

Rgds
Gonzzy

PART A
1) Write Java codes for a class vehicle with the given set of attributes (plate number,brand name, price and speed).
2) Create Java coded for a subclass Taxi with the attributes above.
3) Include objects instances for Taxis

PART B
1) Write Java codes to create an array of Taxi and instances of Taxi objects. Include the following specifications:

a) The program can display the average taxi price
b) The program can store new Taxis inside the array
c) The program can search for particular Taxi information
d) Any two features/attributes other than those stated in part A and B

Explaination that could aid better understanding is highly welcomed.

[horace1]

once you haave implemented class Taxi and tested it you can create an array of them so

   Taxi taxis[]=new Taxi[20];        // create the array
   for (int i=0;i<taxis.length;i++)
      taxis[i]=new Taxi(.....);      // populate it wil Taxi objects
 

[gonzales38]

Thanks Horace!
Sorry I forgot to state the extent I was able to go in PART A here it is

class vehicle
        {
        static String plateNumber;
        String brandName;
        int price;
        int speed;    
        }
 
class taxi extends vehicle
{
public static void  main(String d[])
{
 

Please assist on how to complete PART A and proceed with PART B
Many thanks

[r035198x]

Thanks Horace!
Sorry I forgot to state the extent I was able to go in PART A here it is

class vehicle
        {
        static String plateNumber;
        String brandName;
        int price;
        int speed;    
        }
 
class taxi extends vehicle
{
public static void main(String d[])
{
 

Please assist on how to complete PART A and proceed with PART B
Many thanks

price must be double not int maybe(speed too).
You should start class name with capital letters
Plate number should not be static (it is different for each vehicle) Read the Java classes on this site to see where the static word is used.
Yor vehicle class needs more flesh. You should make the attributes of the vehicle class private and provide getter and setter methods for them. You also need to put at least two constructors for that class. Make these changes and post here.

[gonzales38]

price must be double not int maybe(speed too).
You should start class name with capital letters
Plate number should not be static (it is different for each vehicle) Read the Java classes on this site to see where the static word is used.
Yor vehicle class needs more flesh. You should make the attributes of the vehicle class private and provide getter and setter methods for them. You also need to put at least two constructors for that class. Make these changes and post here.

I have done the part A but needs the solution to part B.
please assist

[gonzales38]

once you haave implemented class Taxi and tested it you can create an array of them so

   Taxi taxis[]=new Taxi[20];        // create the array
   for (int i=0;i<taxis.length;i++)
      taxis[i]=new Taxi(.....);      // populate it wil Taxi objects
 

Please assist me with the part B of the questions as I have done the part A.
Your prompt response is appreciated.
regards
Here is the part A
[code]
public class Vehicle {
private String plateNumber;
private String brandName;
private double vehiclePrice;
private double vehicleSpeed;
private String modelType;
private int yearManufacture;



public void setPlateNum(String plateNumber) {
this.plateNumber = plateNumber;
}

public void setBrandName(String brandName) {
this.brandName = brandName;
}

public void setVehiclePrice(double vehiclePrice) {
vehiclePrice = vehiclePrice;
}

public void setVehicleSpeed(double vehicleSpeed) {
this.vehicleSpeed = vehicleSpeed;
}

public void setModelType(String modelType) {
this.modelType = modelType;
}

public void setYearManufacture(int yearManufacture) {
this.yearManufacture = yearManufacture;
}

public String getPlateNum() {
return this.plateNumber;
}

public String getBrandName() {
return this.brandName;
}

public double getVehiclePrice() {
return this.vehiclePrice;
}

public double getVehicleSpeed() {
return this.vehicleSpeed;
}

public String getModelType() {
return this.modelType;
}

public int getYearManufacture() {
return this.yearManufacture;
}
}


class Taxi extends Vehicle {
private String tRegNum;
private String tCompany;

public void setTRegNum(String tRegNum) {
this.tRegNum = tRegNum;
}

public void setTCompany(String tCompany) {
this.tCompany = tCompany;
}

public String getTRegNum() {
return this.tRegNum;
}

public String getTCompany() {
return this.tCompany;
}
}
[code]

[r035198x]

Please assist me with the part B of the questions as I have done the part A.
Your prompt response is appreciated.
regards
Here is the part A
[code]
public class Vehicle {
private String plateNumber;
private String brandName;
private double vehiclePrice;
private double vehicleSpeed;
private String modelType;
private int yearManufacture;



public void setPlateNum(String plateNumber) {
this.plateNumber = plateNumber;
}

public void setBrandName(String brandName) {
this.brandName = brandName;
}

public void setVehiclePrice(double vehiclePrice) {
vehiclePrice = vehiclePrice;
}

public void setVehicleSpeed(double vehicleSpeed) {
this.vehicleSpeed = vehicleSpeed;
}

public void setModelType(String modelType) {
this.modelType = modelType;
}

public void setYearManufacture(int yearManufacture) {
this.yearManufacture = yearManufacture;
}

public String getPlateNum() {
return this.plateNumber;
}

public String getBrandName() {
return this.brandName;
}

public double getVehiclePrice() {
return this.vehiclePrice;
}

public double getVehicleSpeed() {
return this.vehicleSpeed;
}

public String getModelType() {
return this.modelType;
}

public int getYearManufacture() {
return this.yearManufacture;
}
}


class Taxi extends Vehicle {
private String tRegNum;
private String tCompany;

public void setTRegNum(String tRegNum) {
this.tRegNum = tRegNum;
}

public void setTCompany(String tCompany) {
this.tCompany = tCompany;
}

public String getTRegNum() {
return this.tRegNum;
}

public String getTCompany() {
return this.tCompany;
}
}
[code]

Write the test class then and create the array of taxis like horace1 showed you how. Do you have a problem with that?

[gonzales38]

Write the test class then and create the array of taxis like horace1 showed you how. Do you have a problem with that?

yes i do..please assist

[r035198x]

yes i do..please assist

Well write the class. It doesn't need a constructor. Just put the main method and declare the array and put some taxis in it.

[gonzales38]

Well write the class. It doesn't need a constructor. Just put the main method and declare the array and put some taxis in it.

Here is the test class TaxiI created..please assist in completing it. thanks

 class Taxi  
{
 
    private String tRegNum;
    private String tCompany;
}
 
public static void main(String args[])
{
 Taxi taxis[]=new Taxi[20];        
   for (int i=0;i<taxis.length;i++)
      taxis[i]=new Taxi(.....);     
}
 

[r035198x]

Here is the test class TaxiI created..please assist in completing it. thanks

class Taxi 
{
 
    private String tRegNum;
    private String tCompany;
}
 
public static void main(String args[])
{
Taxi taxis[]=new Taxi[20]; 
for (int i=0;i<taxis.length;i++)
taxis[i]=new Taxi(.....); 
}
 

My dear friend please find time to read this

[gonzales38]

My dear friend please find time to read this

My dear teacher, i dont have time to read this now cos I am constrained of time. I will definately read this later but need to submit this now. Your prompt response is HIGHLY appreciated.Thanks

[r035198x]

My dear teacher, i dont have time to read this now cos I am constrained of time. I will definately read this later but need to submit this now. Your prompt response is HIGHLY appreciated.Thanks

Write the constructors then

 
public Vehicle(String plateNumber, String brandName, double vehiclePrice, double vehicleSpeed, String modelType, int yearManufacture) {
 
//initialize all of them here
}
 

and

 public Vehicle() { 
//initialize everyting to default values
}
 

Do the same for taxi and use these constructors to initialize these values and then initialize those for the other unique attributes in Taxi.

now in main you can do

 Taxi[] taxis = new Taxi[5];

to create space for 5 taxis then

 
Taxi taxi1 = new Taxi("001", "BMW", 5000.0, 500.0, "X5", 200);
 

to create a taxi and

taxis[0] = taxi1;

to set this taxi as the first element of the array.

Now get to work quickly

[gonzales38]

Write the constructors then

 
public Vehicle(String plateNumber, String brandName, double vehiclePrice, double vehicleSpeed, String modelType, int yearManufacture) {
 
//initialize all of them here
}
 

and

 public Vehicle() { 
//initialize everyting to default values
}
 

Do the same for taxi and use these constructors to initialize these values and then initialize those for the other unique attributes in Taxi.

now in main you can do

 Taxi[] taxis = new Taxi[5];

to create space for 5 taxis then

 
Taxi taxi1 = new Taxi("001", "BMW", 5000.0, 500.0, "X5", 200);
 

to create a taxi and

taxis[0] = taxi1;

to set this taxi as the first element of the array.

Now get to work quickly

Here is what i waz able to do but is came up with error of cannot find find symbol
symbol: variable toString

Please assist with the remaining two questions. I have run out of time.
Thansks

class Vehicle
{
String plateNumber; String brandName; double vehiclePrice; double vehicleSpeed; String licenseno;
}  
 
public class Taxi extends Vehicle
{
 
public Taxi(String plateNumber, String brandName, double vehiclePrice, double vehicleSpeed, String licenseno)
{
this.plateNumber = plateNumber;
this.brandName = brandName;
this.vehiclePrice=vehiclePrice;
this.vehicleSpeed=vehicleSpeed; 
this.licenseno=licenseno;
}
 
 
 
 
public static void main(String args[])
{
int i=0;
Taxi[] taxis = new Taxi[5];
Taxi taxi1 = new Taxi("001", "Toyota", 5000.0, 500.0, "GDG5364KK");
taxis[0] = taxi1;
System.out.println(taxi1.toString);
}
 
}
 

[Ganon11]

The error received is due to the fact that you used:

System.out.println(taxi1.toString); // Variable toString

instead of

System.out.println(taxi1.toString()); // Function toString()

[gonzales38]

The error received is due to the fact that you used:

System.out.println(taxi1.toString); // Variable toString

instead of

System.out.println(taxi1.toString()); // Function toString()

Thanks
are u helping me with the remaining 2 questions?
I await your response

[gonzales38]

The error received is due to the fact that you used:

System.out.println(taxi1.toString); // Variable toString

instead of

System.out.println(taxi1.toString()); // Function toString()

when i run the Taxi.java file after compiling it reads "Taxi@82ba41"
How do i make the code return the contents of methods

Taxi taxi1 = new Taxi("001", "Toyota", 5000.0, 500.0, "Camry");
 

please reply fast
rgds

[r035198x]

when i run the Taxi.java file after compiling it reads "Taxi@82ba41"
How do i make the code return the contents of methods

Taxi taxi1 = new Taxi("001", "Toyota", 5000.0, 500.0, "Camry");
 

please reply fast
rgds

Inside taxi class put

the method

 public String toString() { 
           return "Plate :"+plateNumber+" Brand:"+brandName+"  Price:"+vehiclePrice;
}
 

[gonzales38]

Inside taxi class put

the method

 public String toString() { 
           return "Plate :"+plateNumber+" Brand:"+brandName+"  Price:"+vehiclePrice;
}
 

Thanks it worked!
Kindly assist me on how to complete the below:

Develop a Java program that makes use of array to store the Taxi information. This program must have features to the program in Part A with the following specifications:

i. The program can display the average taxi price.
ii. The program can store new taxis inside the array.
iii. The program can search for particular taxi information.
iv. Any two features other than those stated in part A and B.

Urgent respnse required please
thanks

[r035198x]

Thanks it worked!
Kindly assist me on how to complete the below:

Develop a Java program that makes use of array to store the Taxi information. This program must have features to the program in Part A with the following specifications:

i. The program can display the average taxi price.
ii. The program can store new taxis inside the array.
iii. The program can search for particular taxi information.
iv. Any two features other than those stated in part A and B.

Urgent respnse required please
thanks

 public static double getAveragePrice(Taxi[] taxis) { 
//loop through all the taxis adding the price to a variable
}
 

Now do that quickly

[gonzales38]

 public static double getAveragePrice(Taxi[] taxis) { 
//loop through all the taxis adding the price to a variable
}
 

Now do that quickly

please guide on how to start the looping... i dont know looping please assist

[gonzales38]

 public static double getAveragePrice(Taxi[] taxis) { 
//loop through all the taxis adding the price to a variable
}
 

Now do that quickly

please guide on how to start the looping... i dont know looping please assist. I am waiting on you.thx

[r035198x]

please guide on how to start the looping... i dont know looping please assist. I am waiting on you.thx

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