HashMap with multiple values under the same key

Question

Is it possible for us to implement a HashMap with one key and two values. Just as HashMap?

Please do help me, also by telling (if there is no way) any other way to

Answer 1

We can create a class to have multiple keys or values and the object of this class can be used as a parameter in map. You can refer to https://stackoverflow.com/a/44181931/8065321