How to add a string as part of a variable name representing an integer, java

Question

I want to add a string to a variable name that represents an integer. For example:

String test = "v1f1";
set_view(R.drawable.test);

And then ideally it would look for R.drawable.v1f1, but it looks for R.drawable.test instead, which doesn't exist.

Anyone know how to do this?

Thanks.

Answer 1

You'd have to use reflection to do this - but it's not generally a good idea. Why do you want to do this? What values might you have, and could you change it to use a collection of some kind?

Answer 2

There isn't really any dynamic naming capability in Java. You can sometimes get around it by using keys into HashMaps, but I don't see a way to do that in your situation.

Answer 3

You could do this with an enum, as long as you limit yourself to values existing in the enum: eg

public enum Values {
    A,B,C,D;
}

String test = "A";
set_view(Values.valueOf(test));

You could even do it with integers it you were willing to be really evil-

int test=1;
set_view(values.valueOf(new String( ((char)(test+(int)'A')));