get/set

I've created a class (haven't touched it in a wk) but I'm not sure how the set and get method work. I know you have to call them from the application (the set method first) but what do you do with the getMethods?

I'm not sure if posting my code will help, but here it is:

Code:

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import javax.swing.JOptionPane;
import java.text.*;
import java.util.*;
public class CandyClass
{
  private double dumdums;
  private double snickerballs;
  private double sweettarts;
  private double skittles;
  private final  Double tax;
  private double subtotal;
  private double total;
  private double price;
  private int qtyWanted;
  private int quantity;
  //private double order1, order2, order3;
  private DecimalFormat decimalf = new DecimalFormat("$##.##");
  private NumberFormat money = NumberFormat.getCurrencyInstance(Locale.US);
 
    public CandyClass()
    {
      dumdums = 1.50;
      snickerballs = 3.00;
      sweettarts = 2.00;
      skittles = 2.75;
      tax = .06;
    }
   
    //Mutators: set/calculate methods
    public void setDumdums(double inDumdums)
    {
      dumdums = inDumdums;
    }
    public void setSnickerballs(double inSnickerballs)
    {
      snickerballs = inSnickerballs;
    }
    public void setSweettarts(double inSweettarts)
    {
      sweettarts = inSweettarts;
    }
    public void setSkittles(double inSkittles)
    {
      skittles = inSkittles;
    }
    public void setQuantity(int inQuantity)
    {
      quantity = inQuantity;
    }
    public double calcPrice(double candy, int quantity) // calculates a single order
    {
      price = candy * quantity;
      return price;
    }
   
    public double calcTotal(double one, double two, double three) //calculates the total order, which will include taxes
    {
      subtotal = (one + two + three) * tax;
      total = one + two + three + subtotal;
      return total;
    }
   
    //Accessors: get/display methods
    public double getDumdums()
    {
    return dumdums;
    }
    public double getSnickerballs()
    {
    return snickerballs;
    }
    public double getSweettarts()
    {
      return sweettarts;
    }
    public double getSkittles()
    {
      return skittles;
    }
    public int getQuantity() //gets how many pounds a customer wants
    {
      return qtyWanted;
    }
    public void displayMsg()
      {
          JOptionPane.showMessageDialog(null, "Tax for all items is: " + decimalf.format(tax));
          JOptionPane.showMessageDialog(null,"Your total is: " + money.format (total));
          JOptionPane.showMessageDialog(null, "Thank you for shopping at CandyLand!\n\t"
                                          + "Tell a friend!");
      }
  }

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I am not sure if I know exactly what you are trying to ask, but the setters allow you to change the value of one of your instance variables and the getters allow you to get the instance variables current value

so anytime you call the setMethod, you should immediately call the getMethod?
from there the getMethod takes to value in the setMethod which can then be used to pass into my calcMethod?

Quote:

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Originally Posted by smray7

so anytime you call the setMethod, you should immediately call the getMethod?
from there the getMethod takes to value in the setMethod which can then be used to pass into my calcMethod?

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No, you have your getters and setters set up properly. here is an example of how you might use them

Code:

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public static void main(String[] args)
{
        CandyClass exampleCandy = new CandyClass();
       
        System.out.println(exampleCandy.getDumdums()); //will output 1.5

        exampleCandy.setDumdums(5);
        System.out.println(exampleCandy.getDumdums()); //will output 5.0
       
}

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