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## How does Java handle NaN value?

**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.

## Is double in Java?

Java double is **used to represent floating-point numbers**. It uses 64 bits to store a variable value and has a range greater than float type.

## What produces NaN?

“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.

## What is float NaN in Java?

The Float. isNaN() method in Float Class is a built in method in Java returns true if this Float value or the specified float value **is Not-a-Number** (NaN), or false otherwise.

## Is NaN null in Java?

NaN means “**Not a Number**” and is the result of undefined operations on floating point numbers like for example dividing zero by zero. (Note that while dividing a non-zero number by zero is also usually undefined in mathematics, it does not result in NaN but in positive or negative infinity).

## How do you handle NaN?

**5 simple ways to deal with NaN in your data**

- Dropping only the null values row-wise. Some times you just need to drop a few rows that contain null values. …
- Filling the null values with a value. …
- Filling the cell containing NaN values with previous entry. …
- Iterating through a column & doing operation on Non NaN.

## Is Instanceof a keyword in Java?

instanceof is a keyword that **is used for checking if a reference variable is containing a given type of object reference or not**. Following is a Java program to show different behaviors of instanceof.

## Can we convert double to String in Java?

We can convert double to String in java using **String.** **valueOf() and Double**. toString() methods.

## What is NaN equal to?

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**. … There are five different types of operations that return NaN : Number cannot be parsed (e.g. parseInt(“blabla”) or Number(undefined) )

## Why NaN is a Number?

By definition, NaN is **the return value from operations which have an undefined numerical result**. Hence why, in JavaScript, aside from being part of the global object, it is also part of the Number object: Number. NaN. It is still a numeric data type , but it is undefined as a real number .