Is it a legal loop constructions for while statement(int)? : Questions « Statements « SCJP

1. SCJP
2. Statements
3. Questions

public class MainClass{
    public static void main(String[] argv){
      int i = 3;
      while (i) {
        System.out.println("i is " + i);
      }
    }
}
A. Legal
B. Illegal