Java Float isNaN(float v) method
Java isNaN(float v)
method is a part of the Float
class of the java.lang
package. This method is used to check whether the float value passed is Not-a-Number(NaN) or not. It returns the boolean value true
for NaN values and false
for non-NaN values.
Syntax:
public boolean isNaN(float v)
Parameters:
The parameter passed is the float value which is checked for the NaN values.
Returns:
Returns the boolean value true
for NaN values and false
for non-NaN values.
Example 1:
Here, the equivalent values are returned in accordance with the float value passed as an argument.
import java.lang.Float;
public class StudyTonight
{
public static void main(String[] args)
{
float f1 = 67.78f;
float f2 = 0f;
float f3 = -f1/0.0f;
float f4 = f2/0.0f;
float f5 = 0.0f/0.0f;
System.out.println("The value is : " +Float.isNaN(f1)); //returns false for finite value
System.out.println("The value is : " +Float.isNaN(f2)); //returns false for infinite value
System.out.println("The value is : " +Float.isNaN(f3)); //returns false for infinaite value
System.out.println("The value is : " +Float.isNaN(f4)); // returns true for NaN value
System.out.println("The value is : " +Float.isNaN(f5)); // returs true for NaN
}
}
The value is : false
The value is : false
The value is : false
The value is : true
The value is : true
Example 2:
Here is a user-defined example where anyone using this code can put a value of his choice and get the equivalent output.
import java.lang.Float;
import java.util.Scanner;
public class StudyTonight
{
public static void main(String[] args)
{
try
{
System.out.println("Enter the value");
Scanner sc = new Scanner(System.in);
float i = sc.nextFloat();
boolean b = Float.isNaN(i);
if(b == true)
{
System.out.println("Value is NaN");
}
else
{
System.out.println("Value is non NaN");
}
}
catch(Exception e)
{
System.out.println("Invalid Input");
}
}
}
Enter the value
NaN
Value is NaN
******************
Enter the value
734.87
Value is non NaN
Live Example:
Here, you can test the live code example. You can execute the example for different values, even can edit and write your examples to test the Java code.