array _ golang

package main

import (
    "fmt"
)

func main() {

    var a [5]int
    fmt.Println("emp: ", a)

    a[4] = 100
    fmt.Println("set : ", a)
    fmt.Println("get : ", a)

    fmt.Println("len : ", len(a))

    b := [5]int{1, 2, 3, 4, 5}
    fmt.Println("dcl : ", b)

    var twoD [2][3]int
    for i := 0; i < 2; i++ {
        for j := 0; j < 3; j++ {
            twoD[i][j] = i + j
        }
    }

    fmt.Println("2d: ", twoD)
}