如何使用Float类的isNaN（）方法。

/* 来 自 n o w    j a v a  . c o m*/


 

public class Main {

 

  public static void main(String[] args) {

   

    /*

     It return true if the specified argument is Not-a-Number value, false otherwise.

    */

    float f = (float) Math.sqrt(-10);

    boolean b1 = Float.isNaN(f);

    System.out.println(b1);

 

    /*

     boolean isNaN() instance method checks whether the Float object is

     Not-a-Number value or not.

     It return true if the object is Not-a-Number value, false otherwise.

    */

    Float fOb