Java Basic - Phần mềm AI LÀ TRIỆU PHÚ

#Main.java

/*
 * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
 * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
 */
package com.gokisoft.java2.bt1376;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import java.util.Scanner;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 *
 * @author diepvan
 */
public class Main {
    static Scanner scan = new Scanner(System.in);
    
    public static void main(String[] args) {
        int choose;
        
        do {            
            showMenu();
            choose = Integer.parseInt(scan.nextLine());
            
            switch (choose) {
                case 1:
                    input();
                    break;
                case 2:
                    playGaming();
                    break;
                case 3:
                    System.out.println("Thoat!!!");
                    break;
                default:
                    System.out.println("Nhap sai!!!");
                    break;
            }
        } while (choose != 3);
    }
    
    static void showMenu() {
        System.out.println("1. Nhap cau hoi");
        System.out.println("2. Play game");
        System.out.println("3. Thoat");
        System.out.println("Chon: ");
    }

    private static void input() {
        System.out.println("Nhap so cau hoi can them: ");
        int N = Integer.parseInt(scan.nextLine());
        
        FileOutputStream fos = null;
        ObjectOutputStream oos = null;
        
        try {
            fos = new FileOutputStream("questions.dat", true);
            oos = new ObjectOutputStream(fos);
            
            for (int i = 0; i < N; i++) {
                Question question = new Question();
                question.input();
                
                oos.writeObject(question);
            }
        } catch (FileNotFoundException ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
        } catch (IOException ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            if(oos != null) {
                try {
                    oos.close();
                } catch (IOException ex) {
                    Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
            
            if(fos != null) {
                try {
                    fos.close();
                } catch (IOException ex) {
                    Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
        }
    }

    private static void playGaming() {
        List<Question> dataList = new ArrayList<>();
        
        FileInputStream fis = null;
        ObjectInputStream ois = null;
        
        try {
            fis = new FileInputStream("questions.dat");
            ois = new ObjectInputStream(fis);
            
            Object obj;
            
            try {
                while((obj = ois.readObject()) != null) {
                    Question q = (Question) obj;
                    dataList.add(q);
                }
            } catch(Exception e) {}
            
            //Tiep tuc code logic -> OK
        } catch (FileNotFoundException ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
        } catch (IOException ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            if(ois != null) {
                try {
                    ois.close();
                } catch (IOException ex) {
                    Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
            
            if(fis != null) {
                try {
                    fis.close();
                } catch (IOException ex) {
                    Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
        }
        
        //Doc xong du lieu
        //Lay ngau nhien 15 cau hoi trong phan tren
        List<Question> questionList = new ArrayList<>();
        
        if(dataList.size() > 15) {
            Random random = new Random();
            int rad;
            
            for (int i = 0; i < 15; i++) {
                //dataList: A1, A2, A3, A4, A5
                rad = random.nextInt(dataList.size());//rad: 0 - 5 -> 1 -> A2 trong mang dataList
                Question q = dataList.remove(rad);
                questionList.add(q);
            }
        } else {
            questionList = dataList;
        }
        
        System.out.println("===== PLAY GAME =====");
        int answerCorrect = 0;
        for (Question question : questionList) {
            boolean answer = question.gaming();
            if(answer) answerCorrect++;
        }
        
        System.out.println("Ket qua: " + answerCorrect + "/" + questionList.size());
    }
}

#Question.java

/*
 * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
 * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
 */
package com.gokisoft.java2.bt1376;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

/**
 *
 * @author diepvan
 */
public class Question implements Serializable{
    String title;
    List<String> dataList;
    int correctIndex = 0;

    public Question() {
        dataList = new ArrayList<>();
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public List<String> getDataList() {
        return dataList;
    }

    public void setDataList(List<String> dataList) {
        this.dataList = dataList;
    }

    public int getCorrectIndex() {
        return correctIndex;
    }

    public void setCorrectIndex(int correctIndex) {
        this.correctIndex = correctIndex;
    }
    
    public void input() {
        Scanner scan = new Scanner(System.in);
        
        System.out.println("Nhap cau hoi: ");
        title = scan.nextLine();
        
        System.out.println("Nhap dap an: ");
        String line;
        do {
            System.out.println("Cau tra loi: ");
            line = scan.nextLine();
            
            if(!line.equalsIgnoreCase("N")) {
                dataList.add(line);
            }
        } while(!line.equalsIgnoreCase("N"));
        
        System.out.println("Cau tra loi chinh xac: ");
        correctIndex = Integer.parseInt(scan.nextLine());
    }
    
    public boolean gaming() {
        Scanner scan = new Scanner(System.in);
        
        System.out.println("Cau hoi: " + title);
        for (int i = 0; i < dataList.size(); i++) {
            System.out.println("Cau " + (i+1) + ": " + dataList.get(i));
        }
        System.out.println("Dap an: ");
        int index = Integer.parseInt(scan.nextLine());
        
        return index == correctIndex;
    }
}