Is there anyone who can help me with some java ?

Java or Javascript?

java ...

Then you might want to ask a mod to place this thread in the Coding Forum. Javascript is way different than Java.

Post java questions in the coding forum, I can most likely help you out. Java happens to be the language I code in most often.

Its so fun how no one knows where to post something

If you can help me null that be good thanks

What exactly do you need help with?

Ok well I just started learning java using the blue j enviroment not sure you heard of this or used it. I have got assignment to build a vending machine. What is only gonna be used in blue j, so it dont have visual appearence.

and so far I have created the three classes it will use.
Vending machine
Dispenser
Coinbox

in the vending machine i have been told to use a javamap is it? so far I have got this

public void createDispenser(String sProductName, float fPrice, int iInitialStock)
{
Dispenser objX;

objX = new Dispenser();

// Initialise the dispensers
createDispenser("Coke", 90, 5);
createDispenser("Dr_Pepper", 65, 5);
createDispenser("Pepsi", 75, 5);
createDispenser("Sprite", 80, 5);
createDispenser("Water", 70, 5);
createDispenser("Fanta", 85, 5);
createDispenser("Lilt", 65, 5);
createDispenser("7up", 70, 5);
createDispenser("Oasis", 90, 5);
createDispenser("Ice Tea", 95, 5);
createDispenser("apple Juice", 90, 5);


Then what I need to do in the dispenser class. I need to tell the dispenser class, what item to dispense so I have this so far.

public class Dispenser
{
// instance variables also know as fields


// Constructor for objects of class Dispenser
public Dispenser()
{
// initialise instance variables
}
//returns the item name
public String getName()
{
return sProductName;
}

What I want know is how can I call sProductName from the vending class to display in the getName method ?

so when it returns sProductName it say coke so on......

Hope that clean any problem let me know thanks again

I have used BlueJ before, but I've found that Eclipse is much better. Just a few recommendations before I address your questions. First please use the CODE tags when posting code as it makes it easier to read and second, in java you should format your code like this:

public class MyClass
{
     //constants and instance variables
     int x;
     int CONSTANT = 5;
   
     public MyClass(int x)
     {
         this.x = x;
     }

     public void method()
     {
      
     }

}

it makes it much easier to debug and whoever is grading your assignment will appreciate it (and hopefully mark you down if you fail to do so).

Ok now on to your question. It looks to me like you forgot to put a closing braket somewhere but I gather this is what you intended:

public void createDispenser(String sProductName, float fPrice, int iInitialStock)
{
     Dispenser objX;
     objX = new Dispenser();
     //this line can be reduced to Dispenser objX = new Dispenser();
}

     // Initialise the dispensers
     createDispenser("Coke", 90, 5);
     createDispenser("Dr_Pepper", 65, 5);
     createDispenser("Pepsi", 75, 5);
     createDispenser("Sprite", 80, 5);
     createDispenser("Water", 70, 5);
     createDispenser("Fanta", 85, 5);
     createDispenser("Lilt", 65, 5);
     createDispenser("7up", 70, 5);
     createDispenser("Oasis", 90, 5);
     createDispenser("Ice Tea", 95, 5);
     createDispenser("apple Juice", 90, 5);

I'm assuming create dispenser is a method within the vending machine class. If so then I think what you are trying to do is build a map of dispensers. Java should have a built in map so I'm sure you can find some documentation on using it. I don't have any experience with that particular class because usually my professors make us code our data structures from scratch. What you need to do is create your map and then the create disperser class should create a new dispenser and then add it to that map.

If each dispenser needs to have access to the sProductName variable cooresponding to it, then it should be passed to it via the constructor. Modify your dispenser constructor to take a String called sProductName as input like this:

public class Dispenser
{
     String sProductName;

     public Dispenser(String sProductName)
     {
           this.sProductName = sProductName;
     }
     
     //this method should now work as is
     public String getName()
    {
          return sProductName;
    }

}

hope that helps, let me know if you need any more help.

java.util.Map is just an interface.
For something like this, a HashMap is probably the best implementation.

But, if you look at the javadoc for the Map interface, you see a list of the various implementations.

BTW, if you are planning to work with Java after finishing school, you are going to want to learn the collections API inside and out.

Hi thanks I will have look about see how I get on as I say just started learning it so a lot stuff just trying get used to.