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Double isNaN() method in Java
The java.lang.Double.isNan() method returns true if the specified number is a Not-a-Number (NaN) value, false otherwise.
Let’s say the following are our Double values.
Double val1 = new Double(3/0.); Double val2 = new Double(0/0.);
Now, we will use the isNan() method to check whether the number is a NaN or not.
val1.isNaN(); val2.isNaN()
The following is our final example.
Example
public class Demo {
public static void main(String args[]) {
Double val1 = new Double(3/0.);
Double val2 = new Double(0/0.);
System.out.println(val1.isNaN());
System.out.println(val2.isNaN());
}
}Output
false true
Updated on: 26-Jun-2020
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