.put()
In Kotlin, the .put()
method is used to add a key-value pair to a hash map. It is a member function of the MutableMap
interface, which means it can be called on any object that implements this interface, such as a HashMap
or LinkedHashMap
.
Syntax
myHashMap.put(key, value)
It takes in two parameters:
- The
key
of the key-value pair to add or update in the hash map. - The
value
of the key-value pair to add or update in the hash map.
Example
To add a key-value pair to a HashMap
in Kotlin, the .put()
method can be used:
fun main() {val map = HashMap<String, Int>()map.put("apple", 1)map.put("banana", 2)map.put("cherry", 3)println(map)}
This will output:
{banana=2, apple=1, cherry=3}