Go Variables

The most general form to declare a variable in Golang uses the var keyword, an explicit type.

Examples for Variable declaration and initialization using Golang:

package main
import "fmt"
func main() {

	// 1. Declare a variable and initialize it [Typed Variable]
		var a string
		a = "vignesh"
		fmt.Println(a)
        
        // declaration and initialization at a same time
        // var a string = "vignesh"
        
	//default values for types: 
        // int   -> 0, string -> "", 
        // float -> 0, byte   -> 0
        // bool  -> false

	// 2. Shortcut variable declaration (dynamic)
		b := "vicky"
		fmt.Println(b)

	// 3. Go can initialize the type of the variable [UnTyped Variable]
		var c = false
		fmt.Println(c)

	// 4.We can declare and initialize multiple variables with multiple types at a time
		var x, y, z = 1, "abc", 12.0
		fmt.Println(x)
		fmt.Println(y)
		fmt.Println(z)

		m, n := 1, 1.2
		fmt.Println(m)
		fmt.Println(n)
}

Output:

vignesh
vicky
false
1
abc
12
1
1.2