How to apply a function on each element of a List in Java

26.7K views

Open Source Your Knowledge, Become a Contributor

Technology knowledge has to be shared and made accessible for free. Join the movement.

// {
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
public class Main {
public static void main(String[] args) throws Exception {
// }
List<Integer> integers = Arrays.asList(1, 2, 3, 4, 5);
List<Integer> newIntegers = integers.stream()
    .filter(i -> i <= 3)
    .map(i -> 2*i)
    .collect(Collectors.toList());
System.out.println(newIntegers);
// {
}
}
// }

Open Source Your Knowledge: become a Contributor and help others learn. Create New Content