parvezmrobin

package main

func main() {
	var marks = map[string]int{}
	marks["sakeef"] = 95
	marks["oishie"] = 82
	marks["robin"] = 61
	marks["mim"] = 43
	println(marks["sakeef"], marks["oishie"], marks["robin"], marks["mim"])
	// 95 82 61 43

parvezmrobin

package main


func main() {
	var a = [4]int{1, 2, 3, 4}
	var s = a[0:3] // s contains {1, 2, 3}
	s[0] = 5
	println(s[0], a[0]) // 5 5
	s = append(s, 6)
	println(s[3], a[3]) // 6 6

parvezmrobin

package main


func main() {
	var s = []int{1, 2, 3, 4}
	println(s[0], s[1], s[2], s[3]) // 1 2 3 4
	s = append(s, 13)
	println(s[4], len(s), cap(s)) // 13 5 8
}

parvezmrobin

package main

func main() {
	var a = [6]int {1, 2, 3, 4, 5, 6}
	var sl = a[2:5]
	println(sl[0]) // 3
	sl[0] = 13
	println(a[2]) // 13
	var s2 = a[1:3]
	s2[1] = 23

parvezmrobin

package main

func main() {
	var a [2]string
	a[0] = "Hello"
	a[1] = "World"
	println(a[0], a[1]) // Hello World

	primes := [6]int{2, 3, 5, 7, 11, 13}
	println(primes[0], primes[1], primes[2], primes[3], primes[4], primes[5])

parvezmrobin

package main

func main() {
	const World = "Hello"
	World = "Hola" // cannot assign to World
	println(World)
}

parvezmrobin

package main

func main() {
	var i int
	var f float64
	var b bool
	var s string
	println(i, ", ", f, ", ", b, ", ", s, ". ") // 0 ,  +0.000000e+000 ,  false ,   .
}

parvezmrobin

package main

func main() {
	var i, j = 1, 2.3
	println(i + j) 
	// invalid operation: i + j (mismatched types int and float64)
}

parvezmrobin

package main

func main() {
	i := 5
	var j float32 = i  // cannot use i (type int) as type float32 in assignment
	println(j)
}

parvezmrobin

package main

func main() {
	var i, j = 1, 2
	k := 3
	c, python, java := true, false, "no!"

	println(i, j, k, c, python, java) // 1 2 3 true false no!
}