refactor: 코드리뷰 반영(Electronic)

메서드 이름 변경 isContainAuthMethod -> isContainsAuthMethod (최대한 문법을 지키도록 노력하자)
생성자의 접근 제어자 변경 (익숙한 것에서 실수가 나온다.. 조심하자)
resetRegistrationNo() 메서드 삭제 (가독성과 코드 집중화를 고려해보자)

Author: hyunsb

me/day05/practice/Electronic.java

@@ -20,7 +20,7 @@ enum AuthMethod { FINGERPRINT, PIN, PATTERN, FACE }
     private String dateOfMade;
     private AuthMethod[] authMethod;
 
-    Electronic () {
+    private Electronic () {
         registrationNo++;
         setDateOfMade();
         setProductNo();
@@ -39,15 +39,11 @@ private void setDateOfMade(){
     }
 
     private void setProductNo(){
-        if (registrationNo > MAX_REGISTRATION_NUMBER) resetRegistrationNo();
+        if (registrationNo > MAX_REGISTRATION_NUMBER) registrationNo = 1;
         productNo = dateOfMade + String.format("%4d", registrationNo).replace(" ", "0");
     }
 
-    private void resetRegistrationNo(){
-        registrationNo = 1;
-    }
-
-    public boolean isContainAuthMethod(AuthMethod authMethod){
+    public boolean isContainsAuthMethod(AuthMethod authMethod){
         for (AuthMethod auth : this.authMethod)
             if (authMethod.equals(auth)) return true;
         return false;

me/day05/practice/Electronics.java

@@ -63,7 +63,7 @@ public Optional<Electronic[]> groupByAuthMethod(AuthMethod authMethod){
         List<Electronic> temp = new ArrayList<>();
 
         for (Electronic electronic : electronicList)
-            if (electronic.isContainAuthMethod(authMethod))
+            if (electronic.isContainsAuthMethod(authMethod))
                 temp.add(electronic);
 
         Electronic[] authMethodNameGroup =