# How does Java handle NaN?

## How does Java handle NaN?

In the snippet above, you can observe that NaN is produced as a result of 3 simple operations:

- Dividing a float / double zero with zero.
- Taking under-root of a negative number (Math. sqrt(-x)).
- Taking mod of a number with zero, will return the remainder after dividing a value by zero. Hence, NaN is returned.

## What does NaN mean Java?

not a number

Simply put, NaN is a numeric data type value which stands for “not a number”. In this quick tutorial, we’ll explain the NaN value in Java and the various operations that can produce or involve this value.

**What causes NaN Java?**

“NaN” stands for “not a number”. “Nan” is produced if a floating point operation has some input parameters that cause the operation to produce some undefined result. For example, 0.0 divided by 0.0 is arithmetically undefined. Finding out the square root of a negative number too is undefined.

### Is Java a NaN method?

The isNaN() method of Java Double class is a built in method in Java returns true if this Double value or the specified double value is Not-a-Number (NaN), or false otherwise.

### Is NaN a logical error in Java?

NaN means “not a number”, and you got it because regular floating-point math doesn’t support imaginary numbers. It’s a placeholder that means “invalid value”, but it’s not an error at the language level. Show activity on this post. It’s not an error or exception.

**How do I change my NaN to Number?**

Use the ternary operator to convert NaN to zero, e.g. const result = Number. isNaN(val)? 0 : val; . If the value is equal to NaN , the operator returns 0 , otherwise the value is returned.

## What type of error is NaN in Java?

In Java, “NaN” stands for “not a number” and signifies that a value is not defined. “NaN” is not an exception error, but a value that is assigned. For example, imaginary numbers like the square root of negative numbers or zero divided by zero will both print “NaN” as the result.

## What is NaN property?

NaN is a property of the global object. In other words, it is a variable in global scope. The initial value of NaN is Not-A-Number — the same as the value of Number. NaN . In modern browsers, NaN is a non-configurable, non-writable property.