Skip to content

Instantly share code, notes, and snippets.

@vjames19
Created November 30, 2017 04:41
Show Gist options
  • Star 0 You must be signed in to star a gist
  • Fork 0 You must be signed in to fork a gist
  • Save vjames19/a8a938a19c926ae674eb2e9a519b0b4c to your computer and use it in GitHub Desktop.
Save vjames19/a8a938a19c926ae674eb2e9a519b0b4c to your computer and use it in GitHub Desktop.
Imperative vs functional get even numbers
package com.amazon.pq.listingviolationreview.common;
import com.google.common.collect.ImmutableList;
import java.util.ArrayList;
import java.util.List;
public class Test {
public static List<Integer> evenNumbers(List<Integer> integers) {
List<Integer> result = new ArrayList<>();
for (Integer i : integers) {
if (i % 2 == 0) {
result.add(i);
}
}
return result;
}
public static List<Integer> evenNumbers(List<Integer> integers) {
return integers.stream()
.filter(i -> i % 2 == 0)
.collect(ImmutableList.toImmutableList());
}
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment