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]
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