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iOS Swift Enums and Structs Structs and their Methods Struct Methods

Posted by Memory Mungofa
Memory Mungofa
3,343 Points

how do i ammend my code to correct it

we need to figure out the tax amount when tax percentage is 7.5 . call the method calculateTaxes on the variable item and assign the result to a new variable named taxes

struct.swift 
struct Expense {
    var description: String
    var amount: Double = 100

    init (description: String) {
        self.description = description
    }

    // add the calculateTaxes method here
    // it should accept only one parameter named 'percentage' of type Double
    func calculateTaxes(percentage: Double) -> Double {
         return(self.amount * (percentage/100))
    }
}
var taxes = Expenses(description: "Tax")
taxes.percentage = 7.5
taxes.calculateTaxes()

1 Answer

William Li
PLUS
William Li
Courses Plus Student 26,868 Points
William Li
William Li
Courses Plus Student 26,868 Points

Hi, Memory Mungofa , there're several issues here in your code

Create a variable named item and assign it an instance of Expense

On the next line assign the amount property a value of 100.

  • variable name should be item, not taxes.
  • your Expenses is actually misspelled, it should be Expense.
  • there's no need to use the calculateTaxes method here.
struct Expense {
    var description: String
    var amount: Double = 0.0

    init (description: String) {
        self.description = description
    }

    // add the calculateTaxes method here
    // it should accept only one parameter named 'percentage' of type Double
    func calculateTaxes(percentage: Double) -> Double {
         return(self.amount * (percentage/100))
    }
}

var item = Expense(description: "Tax")
item.amount = 100