Go Data Types

Back to: Golang

Data types are used to specify the type of data that a variable can hold. There are several built-in data types in Golang, including int, float64, bool, string, and rune.

Here are some examples of how to use these data types:

int

The int data type is used to store integer values. Here’s an example:

package main

import "fmt"

func main() {
    age := 42
    fmt.Println(age)
}

In this example, we declare a variable called age and assign it a value of 42. We then use the fmt.Println function to print the value of the age variable to the console.

float64

The float64 data type is used to store floating-point values. Here’s an example:

package main

import "fmt"

func main() {
    temperature := 72.5
    fmt.Println(temperature)
}

In this example, we declare a variable called temperature and assign it a value of 72.5. We then use the fmt.Println function to print the value of the temperature variable to the console.

bool

The bool data type is used to store boolean values (true or false). Here’s an example:

package main

import "fmt"

func main() {
    isRaining := true
    fmt.Println(isRaining)
}

In this example, we declare a variable called isRaining and assign it a value of true. We then use the fmt.Println function to print the value of the isRaining variable to the console.

string

The string data type is used to store string values. Here’s an example:

package main

import "fmt"

func main() {
    message := "Hello, World!"
    fmt.Println(message)
}

In this example, we declare a variable called message and assign it a value of “Hello, World!”. We then use the fmt.Println function to print the value of the message variable to the console.

rune

The rune data type is used to store Unicode code points. Here’s an example:

package main

import "fmt"

func main() {
    letter := 'A'
    fmt.Println(letter)
}

In this example, we declare a variable called letter and assign it a value of ‘A’. We then use the fmt.Println function to print the value of the letter variable to the console.

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