KOTLIN somo la 20: method na properties za map

Map ni ana ya data ambazo zinakuwa na key na value.mfano {jina=bongoclass, umri=5, mmiliki=binafsi, hali=ipo hai}. Hapa jina ni key  na bongoclass ni value. Hivyo hivyo kwenye umri ni key na 5 ni value….

Unaweza kutengeneza map kabla ya kuiwek kwneyemchakato, kama nilivyofanya hapo juu. Ama unaweza kuweka data kisha map itatengenezwa wakati program inapo run kama hapo chini. Nimetengeneza map ya website kwa kutumia mutableMapOf.

fun main() {

   val websites = mutableMapOf<String, Any>()

   websites["jina"] = "bongoclass"

   websites["umri"] = 5

   websites["mmiliki"] = "binafsi"

   websites["hali"] = "ipo hai"

   println(websites)

}

{jina=bongoclass, umri=5, mmiliki=binafsi, hali=ipo hai}

Map properties:

- `keys` hutumika kupata keys za map

- `values` hutumika kupata values za map

- `size` hutumika kupata idadi ya item

- `isEmpty` kuangalia kama map ni tupu

- `isNotEmpty` kuangalia kama map sio tupu

fun main() {

   val websites = mutableMapOf<String, Any>()

   websites["jina"] = "bongoclass"

   websites["umri"] = 5

   websites["mmiliki"] = "binafsi"

   websites["hali"] = "ipo hai"

   println("keys")

   println(websites.keys)

   println("values")

   println(websites.values)

   println("size")

   println(websites.size)

   println("isEmpty")

   println(websites.isEmpty())

   println("isNotEmpty")

   println(websites.isNotEmpty())

}

Map methods

- `putAll()` hutumika kuongeza item kwenye map

fun main() {

   val website = mutableMapOf("jina" to "bongoclass", &qu...