Filter and then find the first or returnt the default value
Description
The following code shows how to filter and then find the first or returnt the default value.
Example
//from w w w. j a va2 s .c om
import java.util.Arrays;
import java.util.List;
public class Main {
public static void main(String[] args) {
List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5);
int i = numbers.stream().filter(n -> n % 2 == 0).findFirst().orElse(-1);
System.out.println(i);
}
}
The code above generates the following result.