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Java Stream findAny() with examples
The findAny() method of the Java Stream returns an Optional for some element of the stream or an empty Optional if the stream is empty. Here, Optional is a container object which may or may not contain a non-null value.
Following is an example to implement the findAny() method in Java −
Example
import java.util.*;
public class Demo {
public static void main(String[] args){
List<Integer> list = Arrays.asList(10, 20, 30, 40, 50);
Optional<Integer> res = list.stream().findAny();
if (res.isPresent()) {
System.out.println(res.get());
} else {
System.out.println("None!");
}
}
}Output
10
Example
Let us see another example with list of strings −
import java.util.*;
public class Demo {
public static void main(String[] args) {
List<String> myList = Arrays.asList("Kevin", "Jofra","Tom", "Chris", "Liam");
Optional<String> res = myList.stream().findAny();
if (res.isPresent()) {
System.out.println(res.get());
} else {
System.out.println("None!");
}
}
}Output
Kevin
Updated on: 26-Sep-2019
682 Views
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