Arrays in Go lang
What is ArrayAn array is the collection of similar type of elements.An array is the collection of fixed length.Array elements are stored in contiguous memory locations.All the array elements share the common name, but each element is uniquely identified their index or subscript, so the array is also called a subscript variable.Array index always starts with 0.
Creating an array
var arr [5]int
Note: In the above program snippet, arr is an array of 5 integers.By default, all the array elements are initialized with a default value.
Default ValuesData TypeDefault ValueInt(s)0Float(s)0.0bool(s)falseObjectsnil
Note: Following example demonstrate the default values for array elements.
Example-1 package main
import "fmt"
func main() {
var arr1 [5]int
var arr2 [5]float32
var arr3 [5]string
var arr4 [5]bool
fmt.Println(arr1)
fmt.Println(arr2)
fmt.Printf(arr3)
fmt.Println(arr4)
} Output [0 0 0 0 0] [0 0 0 0 0] [ ] [false false false false false] Example-2 package main
import "fmt"
…
Note: Following example demonstrate the default values for array elements.
Example-1 package main
import "fmt"
func main() {
var arr1 [5]int
var arr2 [5]float32
var arr3 [5]string
var arr4 [5]bool
fmt.Println(arr1)
fmt.Println(arr2)
fmt.Printf(arr3)
fmt.Println(arr4)
} Output [0 0 0 0 0] [0 0 0 0 0] [ ] [false false false false false] Example-2 package main
import "fmt"
…
