fun main(args: Array<String>){
val hashMap:HashMap<Int,String> = HashMap<Int,String>() //define empty hashmap
hashMap.put(1,"Ajay")
hashMap.put(3,"Vijay")
hashMap.put(4,"Praveen")
hashMap.put(2,"Ajay")
println(".....traversing hashmap.......")
for(key in hashMap.keys){
println("Element at key $key = ${hashMap[key]}")
}
}
Output:
.....traversing hashmap.......
Element at key 1 = Ajay
Element at key 2 = Ajay
Element at key 3 = Vijay
Element at key 4 = Praveen
ref : www.javatpoint.com/kotlin-hashmap