HashMap(key: String, value: ArrayList) returns an Object instead of ArrayList?

Question

I\'m storing data in a HashMap with (key: String, value: ArrayList). The part I\'m having trouble with declares a new ArrayList \"current,\" searches the HashMap for the String

Answer 1

public static void main(String arg[])
{
    HashMap> hashmap = 
        new HashMap>();
    ArrayList arraylist = new ArrayList();
    arraylist.add("Hello");
    arraylist.add("World.");
    hashmap.put("my key", arraylist);
    arraylist = hashmap.get("not inserted");
    System.out.println(arraylist);
    arraylist = hashmap.get("my key");
    System.out.println(arraylist);
}

null
[Hello, World.]

Works fine... maybe you find your mistake in my code.