Boolean return type. Help please.

Question

i can't figure whats wrong with my isPositive method. It cant display the "true" or "false" after cheking if my nVal is positve or negative.
import java.util.*;
public class Digits
    public boolean isPositive(int nVal)
         if(nVal>=0)
              return true;
         else
              return false;
      public static void main(String[] args)
         int nVal;
         Digits d = new Digits();
         Scanner a = new Scanner(System.in);
         System.out.print("Enter Integer: ");
         nVal = a.nextInt();
         d.isPositive(nVal);
}

Answer 1

Well, you're not doing anything with the return value. Try
import java.util.*;
public class Digits
    public boolean isPositive(int nVal)
         return nVal>=0; // note this simplification, too
      public static void main(String[] args)
         int nVal;
         Digits d = new Digits();
         Scanner a = new Scanner(System.in);
         System.out.print("Enter Integer: ");
         nVal = a.nextInt();
         System.out.println(d.isPositive(nVal));
}