Stream toArray() returns an array containing the elements of this stream. It is a terminal operation i.e, it may traverse the stream to produce a result or a side-effect. After the terminal operation is performed, the stream pipeline is considered consumed, and can no longer be used.
Syntax :
Object[] toArray()
Return Value : The function returns an array containing the elements of this stream.
Example 1 :
// Java code for Stream toArray() import java.util.*; import java.util.stream.Stream;   class GFG {       // Driver code     public static void main(String[] args)     {         // Creating a Stream of Integers         Stream<Integer> stream = Stream.of( 5 , 6 , 7 , 8 , 9 , 10 );           // Using Stream toArray()         Object[] arr = stream.toArray();           // Displaying the elements in array arr         System.out.println(Arrays.toString(arr));     } } |
Output :
[5, 6, 7, 8, 9, 10]
Example 2 :
// Java code for Stream toArray() import java.util.*; import java.util.stream.Stream;   class GFG {       // Driver code     public static void main(String[] args)     {         // Creating a Stream of Strings         Stream<String> stream = Stream.of( "Geeks" , "for" ,                                           "Geeks" , "GeeksQuiz" );           // Using Stream toArray()         Object[] arr = stream.toArray();           // Displaying the elements in array arr         System.out.println(Arrays.toString(arr));     } } |
Output :
[Geeks, for, Geeks, GeeksQuiz]
Example 3 :
// Java code for Stream toArray() import java.util.*; import java.util.stream.Stream;   class GFG {       // Driver code     public static void main(String[] args)     {         // Creating a Stream of Strings         Stream<String> stream = Stream.of( "Geeks" , "for" ,                                           "gfg" , "GeeksQuiz" );           // Using Stream toArray() and filtering         // the elements that starts with 'G'         Object[] arr = stream.filter(str                                      -> str.startsWith( "G" ))                            .toArray();           // Displaying the elements in array arr         System.out.println(Arrays.toString(arr));     } } |
Output :
[Geeks, GeeksQuiz]