NaN Not a Number puzzle in java

Question ?

What is the output of below code?

public class BridgeOfLooper

{

  public static void main(String[] args)

  {

    double d = 0.0/ 0.0;

    System.out.println( d - 1 == 0);

  }

}

o/p => false

Some might have thought about 'ArithmeticException :Divide by Zero'

Remember that 0.0 is NaN not a Zero.

Explanation : 

  double d = 0.0 / 0.0 Arithmetic expression evaluates to infinity 

  so d becomes NaN

     d = NaN

  

  TechFacts Any floating point operation evaluates to NaN if one or more 

  of its operands are NaN.

  The rules for computing with NaN is that once it generates NaN, a computation is damaged, and no further computation can repair the damage.

   d -1 = NaN which is not equal to 0