# 
#  Overview

In Java, the **`OptionalLong` object** is a container object which may or may not contain a `long` value. 

The `OptionalLong` class is present in the `java.util` package.

# 
#  The `empty()` method 

The **`empty()` method** is used to get the empty instance of the `OptionalLong` class. The returned object doesn't have any value. 

# 
## Syntax

---
```java
public static OptionalLong empty()
```
---

##
## Arguments

This method doesn't take an argument.

##
## Return value

This method returns an `OptionalLong` object with an empty value.

# 
## Code 

The code below denotes how to use the `empty` method.

import java.util.OptionalLong;
  
class OptionalLongEmptyExample {
    public static void main(String[] args) {
        OptionalLong optional = OptionalLong.empty();
        // print value
        System.out.println("OptionalLong : " + optional);
        System.out.println("Has value: " + optional.isPresent());
    }
}

# 
## Explanation 

In the code above:

* *Line 1:* We imported the `OptionalLong` class.

  ---
  ```
  import java.util.OptionalLong;
  ```
  ---

* *Line 5:* We used the `empty` method to get an empty `OptionalLong` object. The returned object doesn't have any value.

  ---
  ```
  OptionalLong optional = OptionalLong.empty();
  ```
  ---

* *Line  7:* We printed the created `OptionalLong` object.

  ---
  ``` 
  System.out.println("OptionalLong: " + optional); // OptionalLong.empty
  ```
  ---

* *Line 8:* We used the `isPresent` method to check if the object contains a value. We will get `false` as a result.

  ---
  ```
  optional.isPresent(); // false
  ```
  ---

What is the OptionalLong.empty method in Java?

OptionalLong.empty() returns an empty OptionalLong object without any value, used for optional long handling.

What is the OptionalLong.empty method in Java?

Overview

The empty() method

Syntax

Arguments

Return value

Code

Explanation

The `empty()` method