In Kotlin, you can create a hash using the HashMap class. Here's an example of how to do it:
// create a HashMap with key as String and value as Int
val myMap = HashMap()
// add key-value pairs to the HashMap
myMap.put("apple", 1)
myMap.put("banana", 2)
myMap.put("orange", 3)
// print the HashMap
println(myMap) // {apple=1, banana=2, orange=3}
In the example above, we first declare a HashMap with keys as String and values as Int. We can then add key-value pairs using the put method provided by the HashMap class. Finally, we print the hash map to verify that it contains the expected data.
Alternatively, you can also declare and initialize the HashMap in a single line:
val myMap = hashMapOf("apple" to 1, "banana" to 2, "orange" to 3)
This will create the same hash map as the previous example.