Vavr refactor 02 07 (#2193)

* Vavr refactor

* Refactor

vavr/src/main/java/com/baeldung/vavr/Person.java

@@ -4,7 +4,7 @@ public class Person {
     private String name;
     private int age;
 
-    public Person(String name, int age) {
+    Person(String name, int age) {
         super();
         this.name = name;
         this.age = age;

vavr/src/main/java/com/baeldung/vavr/PersonValidator.java

@@ -4,10 +4,10 @@ import io.vavr.collection.Seq;
 import io.vavr.control.Validation;
 
 class PersonValidator {
-    String NAME_ERR = "Invalid characters in name: ";
-    String AGE_ERR = "Age must be at least 0";
+    private static final String NAME_ERR = "Invalid characters in name: ";
+    private static final String AGE_ERR = "Age must be at least 0";
 
-    public Validation<Seq<String>, Person> validatePerson(String name, int age) {
+    Validation<Seq<String>, Person> validatePerson(String name, int age) {
         return Validation.combine(validateName(name), validateAge(age)).ap(Person::new);
     }
 

vavr/src/main/java/com/baeldung/vavr/exception/handling/VavrTry.java

@@ -5,14 +5,14 @@ import com.baeldung.vavr.exception.handling.client.HttpClient;
 import com.baeldung.vavr.exception.handling.client.Response;
 import io.vavr.control.Try;
 
-public class VavrTry {
+class VavrTry {
     private final HttpClient httpClient;
 
-    public VavrTry(HttpClient httpClient) {
+    VavrTry(HttpClient httpClient) {
         this.httpClient = httpClient;
     }
 
-    public Try<Response> getResponse() {
+    Try<Response> getResponse() {
         return Try.of(httpClient::call);
     }
 }