Java: how to access a class by a name saved in a variable?

Question

I have something like this:

String currentRoom = "NameOfRoom";
static room NameOfRoom = new room();

And I want to activate a function that is inside the room by accessing it through the variable currentRoom.

Is it possible?

Thanks in advance, Ethan

Possible duplicate of [Get variable by name from a String](http://stackoverflow.com/questions/13298823/get-variable-by-name-from-a-string) — Sudheesh Singanamalla, Feb 07 '17 at 10:22
Possible duplicate of [Creating a variable name using a String value](http://stackoverflow.com/questions/8631935/creating-a-variable-name-using-a-string-value) — CloudPotato, Feb 07 '17 at 10:23
This is most certainly *not* what you want to do. There are better ways to do this. Reflection *can* do this, but most of the times, you don't. — Steffen, Feb 07 '17 at 10:24
Also note that there is a widely accepted convention in java that class names should start with an upper-case letter, while variable names should start with a lower-case letter. — Hulk, Feb 07 '17 at 11:19

score 5 · Accepted Answer · answered Feb 07 '17 at 10:22

5

Not sure if I got you.

But you can use Map to maintain mapping between strings and object instances.

Map<String, Object> map = new HashMap<>();
map.put("NameOfRoom", new Room());

Now retrieve from map

map.get("NameOfRoom")

answered Feb 07 '17 at 10:22

rkosegi

1 Answers1