Return first digit of an integer

Question

How in Java do you return the first digit of an integer.?

i.e.

345

Returns an int of 3.

Answer 1

int firstNumber(int x){
     int firstN = x;
     while(firstN > 9){
          firstN = (firstN - (firstN%10))/10;
     }
     return firstN;   
 }