Arrays
Arrays in go are once defined, you can't change their size. This is a major difference between go and other languages like Python, JavaScript, etc.
package main
import "fmt"
func main(){
var nums [5] int
nums[0] = 1
nums[1] = 2
nums[2] = 3
fmt.Println(nums)
// 1-D Array
nums2:= [5] int {1,2}
fmt.Println(nums2)
// 2-D Array
nums3:= [3][3] int {{1,2},{3,4}}
fmt.Println(nums3)
// Boolean Array
var trueOrFalse [5] bool
fmt.Println(trueOrFalse)
// String Array
var names [3] string
fmt.Println(names)
}Output
[1 2 3 0 0]
[1 2 0 0 0]
[[1 2 0] [3 4 0] [0 0 0]]
[false false false false false]
[ ]Explanation
- In the above code, we have created an array of size 5 and assigned values to the first 3 elements.
- We have also created a 1-D array, 2-D array, boolean array, and string array.
- The default value of an integer array is 0, boolean array is false, and string array is an empty string.