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Java Float isNaN Method Example

  1. /*
  2.   Java Float isNaN method example
  3.   This example shows how to use isNaN() method of the Float class.
  4. */
  5.  
  6. public class JavaFloatIsNaNExample {
  7.  
  8.   public static void main(String[] args) {
  9.    
  10.     /*
  11.      boolean isNaN(float f) static method checks whether the agrument
  12.      primitive float value is Not-a-Number value or not.
  13.      It return true if the specified argument is Not-a-Number value, false otherwise.
  14.     */
  15.     float f = (float) Math.sqrt(-10);
  16.     boolean b1 = Float.isNaN(f);
  17.     System.out.println(b1);
  18.  
  19.     /*
  20.      boolean isNaN() instance method checks whether the Float object is
  21.      Not-a-Number value or not.
  22.      It return true if the object is Not-a-Number value, false otherwise.
  23.     */
  24.     Float fObj = new Float(f);
  25.     boolean b2 = fObj.isNaN();
  26.     System.out.println(b2);
  27.   }
  28. }
  29.  
  30. /*
  31. Output would be
  32. true
  33. true
  34. */

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