diff --git a/src/main/java/practice/CandidateValidator.java b/src/main/java/practice/CandidateValidator.java
index 0313eb98..92a7d030 100644
--- a/src/main/java/practice/CandidateValidator.java
+++ b/src/main/java/practice/CandidateValidator.java
@@ -6,18 +6,15 @@
 import model.Candidate;
 
 public class CandidateValidator implements Predicate<Candidate> {
-    // National for being candidate
-    private static final String neededNational = "Ukrainian";
-    // Minimum required age for being candidate
-    private static final int neededAge = 35;
-    // Minimum required years for being candidate
-    private static final int neededPeriod = 10;
+    private static final String requirementNationality = "Ukrainian";
+    private static final int requirementAge = 35;
+    private static final int requirementPeriodInUkr = 10;
 
     @Override
     public boolean test(Candidate candidate) {
         if (candidate == null
-                || !candidate.getNationality().equals(neededNational)
-                || candidate.getAge() < neededAge
+                || !candidate.getNationality().equals(requirementNationality)
+                || candidate.getAge() < requirementAge
                 || !candidate.isAllowedToVote()) {
             return false;
         }
@@ -27,7 +24,7 @@ public boolean test(Candidate candidate) {
                     .map(Integer::valueOf)
                     .toList();
             if (periodInUkraine.size() != 2
-                    || periodInUkraine.get(1) - periodInUkraine.get(0) < neededPeriod) {
+                    || periodInUkraine.get(1) - periodInUkraine.get(0) < requirementPeriodInUkr) {
                 return false;
             }
         } catch (NumberFormatException | IndexOutOfBoundsException e) {
diff --git a/src/main/java/practice/StreamPractice.java b/src/main/java/practice/StreamPractice.java
index 5551dc41..cb1832f0 100644
--- a/src/main/java/practice/StreamPractice.java
+++ b/src/main/java/practice/StreamPractice.java
@@ -73,10 +73,11 @@ public List<Person> getWorkablePeople(int fromAge, int femaleToAge,
                                           int maleToAge, List<Person> peopleList) {
 
         return peopleList.stream()
-                .filter(p -> p.getAge() >= fromAge)
-                .filter((p -> (p.getSex() == Person.Sex.WOMAN && p.getAge() <= femaleToAge)
-                    || (p.getSex() == Person.Sex.MAN && p.getAge() <= maleToAge)))
-                .collect(Collectors.toList());
+                .filter(person -> person.getAge() >= fromAge)
+                .filter(person -> (person.getSex() == Person.Sex.WOMAN
+                        && person.getAge() <= femaleToAge
+                    || person.getSex() == Person.Sex.MAN && person.getAge() <= maleToAge))
+                .toList();
     }
 
     /**
@@ -87,14 +88,14 @@ public List<Person> getWorkablePeople(int fromAge, int femaleToAge,
     public List<String> getCatsNames(List<Person> peopleList, int femaleAge) {
 
         return peopleList.stream()
-                .filter(p -> p.getSex() == Person.Sex.WOMAN)
-                .filter(p -> p.getAge() >= femaleAge)
-                .flatMap(c -> c.getCats().stream())
+                .filter(person -> person.getSex() == Person.Sex.WOMAN)
+                .filter(person -> person.getAge() >= femaleAge)
+                .flatMap(cat -> cat.getCats().stream())
                 .map(Cat::getName)
-                .collect(Collectors.toList());
+                .toList();
     }
 
-    /**               V - wtf MA, wrong article
+    /**
      * Your help with a election is needed. Given list of candidates, where each element
      * has Candidate.class type.
      * Check which candidates are eligible to apply for president position and return their
@@ -112,6 +113,6 @@ public List<String> validateCandidates(List<Candidate> candidates) {
                 .filter(new CandidateValidator())
                 .map(Candidate::getName)
                 .sorted()
-                .collect(Collectors.toList());
+                .toList();
     }
 }