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Bael 2018 (#4774)

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* BAEL-2018

* Update Animal.java

* rename

* tests added

* generic type shorten
This commit is contained in:
myluckagain
2018-07-21 21:23:02 +05:00
committed by Predrag Maric
parent b501487e0f
commit 8f52c3f6d3
3 changed files with 76 additions and 24 deletions
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core-java-8/src/main/java/com/baeldung/convertlisttomap/ConvertListToMapService.java
+5 -15
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@@ -5,14 +5,15 @@ import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import org.apache.commons.collections4.IterableUtils;
import org.apache.commons.collections4.MapUtils;
import com.google.common.collect.Maps;
public class ConvertListToMapService {
public Map<Integer, Animal> convertListBeforeJava8(List<Animal> list) {
Map<Integer, Animal> map = new HashMap<Integer, Animal>();
Map<Integer, Animal> map = new HashMap<>();
for (Animal animal : list) {
map.put(animal.getId(), animal);
}
@@ -30,20 +31,9 @@ public class ConvertListToMapService {
return map;
}
public Map<Integer, Animal> convertListWithApacheCommons1(List<Animal> list) {
public Map<Integer, Animal> convertListWithApacheCommons(List<Animal> list) {
Map<Integer, Animal> map = new HashMap<Integer, Animal>();
IterableUtils.forEach(list, animal -> {
map.put(animal.getId(), animal);
});
return map;
}
public Map<Integer, Animal> convertListWithApacheCommons2(List<Animal> list) {
Map<Integer, Animal> map = new HashMap<Integer, Animal>();
Map<Integer, Animal> map = new HashMap<>();
MapUtils.populateMap(map, list, Animal::getId);