dependencies: #2449 bump maven-checkstyle-plugin from 3.1.0 to 3.2.0 + resolve chec… (#2464)

* #2449 bump maven-checkstyle-plugin from 3.1.0 to 3.2.0 + resolve checkstyle issues

* remove FileSelectorJFrame.java to resolve checkstyle issue

* remove FileSelectorJFrame.java to resolve checkstyle issue

* remove FileSelectorJFrame.java to resolve checkstyle issue

* add refactored file with correct filename to resolve checkstyle issue

* add the test data

* change filenames from JFrame to Jframe for checkstyle

* fix code smell from  sonar report

* add new testcases to improve the test coverage

* remove code smell

transaction-script/src/main/java/com/iluwatar/transactionscript/Hotel.java

@@ -26,6 +26,9 @@ package com.iluwatar.transactionscript;
 
 import lombok.extern.slf4j.Slf4j;
 
+/**
+ * Hotel class to implement TS pattern.
+ */
 @Slf4j
 public class Hotel {
 

transaction-script/src/main/java/com/iluwatar/transactionscript/HotelDao.java

@@ -27,6 +27,9 @@ package com.iluwatar.transactionscript;
 import java.util.Optional;
 import java.util.stream.Stream;
 
+/**
+ * DAO interface for hotel transactions.
+ */
 public interface HotelDao {
 
   Stream<Room> getAll() throws Exception;

transaction-script/src/main/java/com/iluwatar/transactionscript/HotelDaoImpl.java

@@ -36,6 +36,9 @@ import java.util.stream.StreamSupport;
 import javax.sql.DataSource;
 import lombok.extern.slf4j.Slf4j;
 
+/**
+ * Implementation of database operations for Hotel class.
+ */
 @Slf4j
 public class HotelDaoImpl implements HotelDao {