How to create new variable in java dynamically

Question

Is it possible to create new variables in java dynamically.

class A {
methodA(String variableName) {

      }
}

So if new method is called

Answer 1

No, this is not possible to do in Java.

The fields in a class is determined at compile time and can't be changed during runtime (except though sophisticated techniques such as class reloading though for instance JRebel). I would however not recommend doing this, unless you're writing some IDE for instance.