Java 9 Programming By Example

The GameSessionSaver class

This class has three public methods:

• save: This saves a table to the user session
• restore: This gets a table from the user session
• reset: This deletes any table that may be in the session

The code of the class is the following:

public class GameSessionSaver {     private static final String STATE_NAME = "GAME_STATE";     @Inject     private HtmlTools html;     @Inject     Table table;     @Inject     ColorManager manager;     public void save(HttpSession session) {         Map<String,String> params = convertTableToMap();         session.setAttribute(STATE_NAME,params);     }     public void reset(HttpSession session) {         session.removeAttribute(STATE_NAME);     }     public Map<String,String> restore(HttpSession session){         Map<String,String> map=  (Map<String,String>) ...