NaN values indicates that a calculation has no result in ordinary arithmetic : double « Java Source And Data Type « SCJP






  1. SCJP
  2. Java Source And Data Type
  3. double
public class MainClass{
    public static void main(String[] argv){
       int i = -2;
       double j = Math.sqrt(i);
       System.out.println(j);

    }
}

NaN








1.14.double
1.14.1.Attach a D or d to double literals, but it is not necessary.
1.14.2.NaN values indicates that a calculation has no result in ordinary arithmetic
1.14.3.A value containing a decimal point is assumed to be the 64-bit double,
1.14.4.Division by zero in floating-point-arithmetic: No exception occurs;
1.14.5.See if a floating-point result is NaN, use the Float.isNaN or Double.isNaN static method.
1.14.6.Float and Double classes define MAX_VALUE, MIN_VALUE, POSITIVE_INFINITY, and NEGATIVE_INFINITY.