Question

How to use isNaN() method with Double object in Java

Answer 1

package javaapplication1;

public class JavaApplication1 {
 
    public static void main(String[] args) {
  
        double d = Math.sqrt(-3);
        Double dObj = d;
        boolean b = dObj.isNaN();
        System.out.println(b);
    }
}
 
/*
    
run:
    
true

*/

 

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