Swift Data types with Examples – int,float,string,number

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Integers:

Integers are used to store whole numbers, both positive and negative. Swift has four different types of integers: Int8, Int16, Int32, and Int64. Here’s an example:

let age: Int = 25

Floating-Point Numbers:

Floating-point numbers are used to store decimal numbers, both positive and negative. Swift has two different types of floating-point numbers: Float and Double. Floats are used for values with a smaller range and precision, while Doubles are used for values with a larger range and precision. Here’s an example:

let pi: Double = 3.14159265359

Strings:

Strings are used to store text and characters. They can be created using double quotes or single quotes. Here’s an example:

let name: String = “John”

Booleans:

Booleans are used to store true or false values. They are typically used in conditional statements and loops. Here’s an example:

let isLoggedin: Bool = true

Arrays:

Arrays are used to store a collection of values of the same type. They can be created using square brackets and separated by commas. Here’s an example:

let numbers: [Int] = [1, 2, 3, 4, 5]

Dictionaries:

Dictionaries are used to store a collection of key-value pairs. The keys must be unique and the values can be of any type. They can be created using square brackets and colons. Here’s an example:

let person: [String: Any] = [“name”: “John”, “age”: 25, “isMarried”: false]

Tuples:

Tuples are used to group multiple values of different types into a single compound value. They can be created using parentheses and commas. Here’s an example:

let coordinates: (Double, Double) = (37.7749, -122.4194)

Optionals:

Optionals are used to represent values that may or may not exist. They can be created using a question mark after the data type. Here’s an example:

let middleName: String? = nil

Any and Anyobject:

Any and AnyObject are used to represent values of any type. Any can be used for values of any type, including functions and closures, while AnyObject can only be used for values of class types. Here’s an example:

let value: Any = “Hello, World!”

let object: AnyObject = NSObject()

In conclusion, Swift has a wide range of data types that can be used to store and manipulate different types of data. By using these data types, you can create powerful and dynamic applications with ease.

Swift is a powerful and modern programming language that is designed to be fast, safe, and easy to use. It has a variety of built-in data types that can be used to store and manipulate different types of data. In this post, we’ll take a look at the different data types available in Swift and provide examples of how they can be used.

Integers:

Integers are used to store whole numbers, both positive and negative. Swift has four different types of integers: Int8, Int16, Int32, and Int64. Here’s an example:

let age: Int = 25

Floating-Point Numbers:

Floating-point numbers are used to store decimal numbers, both positive and negative. Swift has two different types of floating-point numbers: Float and Double. Floats are used for values with a smaller range and precision, while Doubles are used for values with a larger range and precision. Here’s an example:

let pi: Double = 3.14159265359

Strings:

Strings are used to store text and characters. They can be created using double quotes or single quotes. Here’s an example:

let name: String = “John”

Booleans:

Booleans are used to store true or false values. They are typically used in conditional statements and loops. Here’s an example:

let isLoggedin: Bool = true

Arrays:

Arrays are used to store a collection of values of the same type. They can be created using square brackets and separated by commas. Here’s an example:

let numbers: [Int] = [1, 2, 3, 4, 5]

Dictionaries:

Dictionaries are used to store a collection of key-value pairs. The keys must be unique and the values can be of any type. They can be created using square brackets and colons. Here’s an example:

let person: [String: Any] = [“name”: “John”, “age”: 25, “isMarried”: false]

Tuples:

Tuples are used to group multiple values of different types into a single compound value. They can be created using parentheses and commas. Here’s an example:

let coordinates: (Double, Double) = (37.7749, -122.4194)

Optionals:

Optionals are used to represent values that may or may not exist. They can be created using a question mark after the data type. Here’s an example:

let middleName: String? = nil

Any and Anyobject:

Any and AnyObject are used to represent values of any type. Any can be used for values of any type, including functions and closures, while AnyObject can only be used for values of class types. Here’s an example:

let value: Any = “Hello, World!”

let object: AnyObject = NSObject()

In conclusion, Swift has a wide range of data types that can be used to store and manipulate different types of data. By using these data types, you can create powerful and dynamic applications with ease.

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