The toArray() method of Doubles Class in the Guava library is used to convert the double values, passed as the parameter to this method, into a Double Array. These double values are passed as a Collection to this method. This method returns a Double array.
public static double toArray(Collection<? extends Number> collection)
Parameters: This method accepts a mandatory parameter collection which is the collection of double values to be converted in to a Double array.
Return Value: This method returns a double array containing the same values as a collection, in the same order.
Exceptions: This method throws NullPointerException if the passed collection or any of its elements is null.
Below programs illustrate the use of toArray() method:
Example 1 :
[1.2, 2.3, 3.4, 4.5, 5.6]
Example 2 :
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