问我应该应用什么AI/ML技术在Java中生成推荐的游戏列表？

EN

package Games;

import java.util.Scanner;

public class Games
{
    String _gameType;
    String _genreType;
    String _gameMode;
    String _gameRating;
    String _tType;

    public static Scanner input = new Scanner(System.in);

    public Games(String type)
    {
        _gameType = type;
        System.out.println("Suggested type of game is: " + _gameType);
    }
    public Games()
    {
        _gameType = "Sports";
        System.out.println("Suggested type of game is: " + _gameType);
    }
    public void typeInput(String tType)
    {
        _tType = tType;
        System.out.println("Type of Game selected: " + _tType);
    }
    public void genreInput(String gType)
    {
        _genreType = gType;
        System.out.println("Type of Genre selected: " + _genreType);
    }
    public void modeInput(String gMode)
    {
        _gameMode = gMode;
        System.out.println("Type of Game Mode selected: " + _gameMode);
    }
    public void ratingInput(String gRating)
    {
         _gameRating = gRating;
         System.out.println("Type of Rating selected: " + _gameRating);
    }
    public void printPeas()
    {
        String agent = "Agent = Video Game Seletor.";
        String perfmeasure = "P = If it meets the users information being input.";
        String environment = "E = All games within a certain location.";
        String actuators = "A = Library of games to select from, and the display of which game was selected.";
        String sensors = "S = Keyboard input.";
        System.out.println(agent);
        System.out.println(perfmeasure);
        System.out.println(environment);
        System.out.println(actuators);
        System.out.println(sensors);
    }
}


package Games;

import java.util.ArrayList;
import java.util.Random;

public class Game
{
    public static String _genreType;
    public static String _gameMode;
    public static String _gameRating;
    public static String _gameName;

    public void setGame(String genre, String mode, String rating)
    {
        _genreType = genre;
        _gameMode = mode;
        _gameRating = rating;
        _gameName = "";

        Random random = new Random();
        String gameList[] = {"NHL '18", "Madden '18", "Call of Duty: WW2", "GTA V", "Counter-Strike: Global Offsnsive",
            "World of Warcrat", "PUBG", "Assassin's Creed Origins", "Hearthstone", "Battlefield 4"};
        String genreList[] = {"Action", "Sports", "Racing", "MMORPG", "Strategy", "Fighting", "Fantasy"};
        String modeList[] = {"Multiplayer", "Online", "Campaign"};
        String ratingList[] = {"Everyone", "E10+", "Teen", "Mature"};
        String platformList[] = {"PC", "PS4", "Xbox"};
        for(int i=0; i<gameList.length; i++) //trying to have it pull a random game name matching type, genre, mode and rating
        {
            if(genre == genreList[i])
            {
                _genreType = genre;
            }
            if(mode == modeList[i])
            {
                _gameMode = mode;
            }
                System.out.println(gameList[random.nextInt(gameList.length)]);
        }
    }
}

package Games;

import java.util.Scanner;

public class StartSelector
{
    public static String _gameType;
    public static String _genreType;
    public static String _gameMode;
    public static String _gameRating;
    public static Scanner userInput = new Scanner(System.in);
    public static void main(String[] args)
    {
        String gameType = _gameType, genreType = _genreType, gameMode = _gameMode, gameRating = _gameRating;
        Games gameType1 = new Games();
        gameType1.printPeas();
        Games gameType2 = new Games("Action");
        gameType2.printPeas();
        Games gameSelect = new Games();
        System.out.println("Please enter the Genre Type: ");
        genreType = userInput.next();
        gameSelect.genreInput(genreType);
        System.out.println("Please enter the Game Type: ");
        gameType = userInput.next();
        gameSelect.typeInput(gameType);
        System.out.println("Please enter the Game Mode: ");
        gameMode = userInput.next();
        gameSelect.modeInput(gameMode);
        System.out.println("Please enter the Game Rating: ");
        gameRating = userInput.next();
        gameSelect.ratingInput(gameRating);
        userInput.close();
        System.out.println("You have selected a " + genreType + " " 
        + gameType + " " + gameMode + " " + gameRating 
        + " game to play.");
        gameType1.setGame("Action", "Online", "Mature", "GTA V");
    }
}