I would like to declare a `String` for a country variable in `Java` which would only take 2 characters such as `IN`, `DE` etc. I am a bit confused so can someone please help me?

If I try to assign a value something like this then it should work:
`country = "IN"` but if I try to assign a value `country = "IND"` then it should throw an error.

I am a bit familiar with `regex` but wanted to confirm if there is any built-in String method that would do this.

```
public class App {
    public static void main(String[] args) {
        String country = "";
        //char[] array = new char[2];
        //String country = new String(array); 
        // String[] country = new String[2];

    }
}

```