[Kotlin] HashMap

 

 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 = $")  
​

 

https://www.javatpoint.com/kotlin-hashmap