In Java, the **`OptionalDouble` object** is a container object that may or may not contain a `double` value. 
>The `OptionalDouble` class is present in the `java.util` package.

#    
#  The `of` method 

The **`of` method** is used to get an instance of the `OptionalDouble` class with the specified `double` value.

##    
### Syntax

```java
public static OptionalDouble of (double value)
```
### Parameters
This method takes as a parameter the `double` value that is to be present in the `OptionalDouble` object.

### Return value
This method returns an `OptionalDouble` object with the specified `double` value.

##   
## Code 

The code below shows how to use the `of` method.

import java.util.OptionalDouble;
  
class OptionalDoubleOfExample {
    public static void main(String[] args) {
        OptionalDouble optional1 = OptionalDouble.of(1.5);
        System.out.println("Optional 1: " + optional1);

        OptionalDouble optional2 = OptionalDouble.of(10.8967);
        System.out.println("Optional 2: " + optional2);
    }
}

#    
## Explanation 

In the code above:

* *In line 1*, we imported the `OptionalDouble` class.
```
import java.util.OptionalDouble;
```

* *In line 5*, we used the `of` method to get an `OptionalDouble` object with the `double` value `1.5`.
```
OptionalDouble optional1 = OptionalDouble.of(1.5);
optional1; // OptionalDouble[1.5]
```

* *In line 8*, we used the `of` method to get an `OptionalDouble` object with the value `10.8967`.
```
OptionalDouble optional2 = OptionalDouble.of(10.8967);
optional2;// OptionalDouble[10.8967]
```

What is the OptionalDouble.of method in Java?

The OptionalDouble.of method creates an OptionalDouble object containing a specified double value.

What is the OptionalDouble.of method in Java?

The of method

Syntax

Parameters

Return value

Code

Explanation

The `of` method