Java Float - isNaN() Method
The java.lang.Float.isNaN() method is used to check whether the specified number is a Not-a-Number (NaN) or not. The method returns true if the specified number is a Not-a-Number (NaN), false otherwise.
Syntax
public static boolean isNaN(float v)
Parameters
v |
Specify the value to be tested. |
Return Value
Returns true if the argument is NaN; false otherwise.
Exception
NA.
Example:
In the example below, the java.lang.Float.isNaN() method is used to check whether the given number is NaN or not.
import java.lang.*; public class MyClass { public static void main(String[] args) { //creating float values float x = 5.2f; float y = 0.0f/0.0f; float z = Float.NaN; //checking float values for NaN System.out.println("Is x NaN?: " + Float.isNaN(x)); System.out.println("Is y NaN?: " + Float.isNaN(y)); System.out.println("Is z NaN?: " + Float.isNaN(z)); } }
The output of the above code will be:
Is x NaN?: false Is y NaN?: true Is z NaN?: true
❮ Java.lang - Float