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I am making a program to calculate the cost of carpet fitting. I am struggling to write a setter getter message for the following variables... labourCharge, price and postCode.

3 Answers3

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This is how you should write your code. Assuming that your class is CarpetCostEstimator. The constructor takes the three values of labourCharge, postCode and price and sets them as follows: 

public CarpetCostEstimator(double labourCharge, String postCode, double 
    price)
 {
     this.price = price;
     this.postCode = postCode;
     this.labourCharge = labourCharge;
  }

 public double getLabourCharge()
  { 
     return this.labourCharge ;
  }


   public void setLabourCharge(double labourCharge){
          this.labourCharge = labourCharge
   }

In the above code, I've showed you how to put a setter and getter for labourCharge, you can do the same for the other properties of price and postCode.

Marwa Eldawy
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You need to create a getter/setter inside the class only

public class CarpetCostEstimator {
   double price = -1.0;
   String postCode = "XXX-XXX";
   double labourCharge = 1.0;

   public double getPrice() {
      return price;
   }

   public void setPrice(double price) {
      this.price = price;
   }

   public String getPostCode() {
      return postCode;
   }

   public void setPostCode(String postCode) {
      this.postCode = postCode;
   }

   public double getLabourCharge() {
      return labourCharge;
   }

   public void setLabourCharge(double labourCharge) {
      this.labourCharge = labourCharge;
   }
}
Damodhar
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  • hi, many thanks for your answer. so instead of this.price, this.postCode so on and so forth I should change it to the above...double price, string postcode.public class CarpetCostEstimator { // instance variables - replace the example below with your own double price; double labourCharge; String postCode; –  Nov 24 '19 at 13:27
  • You can access in a way CarpetCostEstimator obj = new CarpetCostEstimator(); obj.setPrice(10.90) and get using getter Double priceis = obj.getPrice() – Damodhar Nov 25 '19 at 04:38
  • hi how would I test it. for example how would I create an object of the class CarpetCostEstimator, passing it the value 4.0 for the labour charge. thanks –  Nov 25 '19 at 12:59
  • send some details about OUWorkspace class what it is? – Damodhar Nov 25 '19 at 13:02
  • please read last comment –  Nov 25 '19 at 14:11
  • CarpetCostEstimator obj = new CarpetCostEstimator(); obj.setPrice(10.90) and get using getter Double priceis = obj.getPrice() – Damodhar Nov 25 '19 at 14:12
  • so this is what I have so far and when I execute it it says, error class expected. CarpetCostEstimator obj = new CarpetCostEstimator(); obj.labourCharge(4.0); obj.getlabourCharge(double); –  Nov 25 '19 at 17:10
  • obj.labourCharge(4.0); this function not in class there setLabourCharge method for setting labour charges – Damodhar Nov 25 '19 at 18:55
  • I didnt get that. How? Thanks –  Nov 25 '19 at 22:39
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In intellij idea it is convenient to generate getter and setter by means of a combination alt+insert, at the expense of other studios I do not know

Илья Сумков
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