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Classes
Creating a Class

Just like structures, we can use classes to model everyday objects. And the syntax looks awfully similar.

Here’s the basic syntax for creating a class:

class Name {

}

The class keyword followed by a class name creates the class. By convention, the class name is capitalized. And just like structures, classes also contain both properties and methods.

Suppose we are writing a program for a school to keep track of all the students. Then we can create a blueprint for this type of data by using a class.

Here’s a Student class that models a student:

class Student { var name: String var year: Int var gpa: Double var honors: Bool }

The Student class has four properties:

  • .name of the type String
  • .year of the type Int
  • .gpa of the type Double
  • .honors of the type Bool

We can also use Swift’s default property values so that the Student class can have predefined values inside the class:

class Student { var name = "" var year = 0 var gpa = 0.0 var honors = false }

Now when we create a new instance of Student, that instance’s .name will be an empty string "", its .year will be 0, and so on.

Instructions

1.

Create a Restaurant class with the following properties:

  • .name with a default value of ""
  • .type with a default value of [""]
  • .rating with a default value of 0.0
  • .delivery with a default value of false
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