Thread: Setters and getters

I'm trying to try and set the cost of the pizza, in one class i have :

   public double MargheritaCost;
public void setMargheritaCost(double MargheritaCost) {
		this.MargheritaCost = MargheritaCost;
		}
 
	public double getMargheritaCost() {
		return MargheritaCost;
		}

then in another class i have

 void Margherita ()
	{
		Pizza p=new Pizza();
		p.setMargheritaCost(5.49);
	}

this does not set the cost and i get an error message informing me to create a method

anyone got any ideas where i'm going wrong? thanks

Originally Posted by Norm

Please copy the full text of the compiler's error message and paste it here.

Is the correct version of the Pizza class accessible to the compiler so it sees the method definition?

The method setMargheritaCost(double) is undefined for the type Pizza

I'm using extends


public class PizzaMenu extends Pizza {

void Margherita ()
{
Pizza p=new Pizza();
p.setMargheritaCost(5.49);
}

Originally Posted by Norm

Is the correct version of the Pizza class accessible to the compiler so it sees the method definition?

I may sound like an idiot, but how do you check =/

Originally Posted by Norm

Use a file explorer type program, find and delete all old versions of the class file and then compile the new version.

I've deleted the others, but it's definitely the correct one

Originally Posted by Norm

Then why isn't the compiler finding the definition for that method in the Pizza class?

Are you sure i don't it correctly ? sorry i'm just becoming really aggravated, i haven't progressed in 3 days and it needs to be done for friday. Becoming worried ;p

Originally Posted by Norm

Is the setMargheritaCost() method defined in the Pizza class that the compiler sees when it tries to compile the code with the call to setMargheritaCost()?

I kinda just copied the way i done with my other getters and setters. So in my Pizza class the only thing i have related to this is
static public double MargheritaCost;

Originally Posted by Norm

That defines a class variable and should not be related to calling a method in the class.

Having it static means all instances of the class that it is in will share the same value instead of each instance of the class having its own value.

The method is defined in the PizzaBase class, so how can i define it in both, i'm required to use extend on pizza because it contains all the toppings that i'll need

Originally Posted by Norm

Does the Pizza class extend that class so that the PizzaBase methods are available in instances of the Pizza class.

It won't allow me to do that, receive an error message "Implicit super constructor PizzaBase() is undefined for default constructor. Must define an explicit constructor"

Originally Posted by Norm

This way of trying to fix your problems is not going to work. You need to make a small, complete set of classes that show the problem and paste them here along with the error messages.

Is it ok that when you've looked at it, and if the problem is resolved. Can i edit my post and remove the code? don't want others stealing you see..

Originally Posted by Norm

Make a small special set of classes for testing, don't use the classes from your assignment.

There are two or three classes and a few methods each. Nothing more is needed.

How can i do my testing class =/ cheers

Originally Posted by Norm

Same way you create any class. With an editor or IDE.

I know how to create a class =/ i mean i don't know how to test each class, just call the class?

Originally Posted by GoodbyeWorld

public class TestClass
{
 
 
public static void main(String[] args)
{
 
PizzaMenu pm = new PizzaMenu();
 
// call methods and stuff with pm object
 
}
}

I've already got this down at the moment, but different object name. Can you show an example of using pm with method, please?