java - 将逻辑类链接到我的 gui 类 java

Question

你好，我想知道如何将我的逻辑类链接到我的 gui 类？我写了一个逻辑类，它是结构，然后必须给它一个接口(interface)；所以我编写了另一个类，即 gui 类，但不知道如何使 GUI 类从逻辑类中获取变量。P.S:这是一个猜数字游戏，用户必须猜出 1-10 之间的数字。

逻辑类

import java.util.InputMismatchException;
import java.util.Random;
import java.util.Scanner;

public class GG {


    public static void main(String[] args) 
    {
        //random number
        Random rand = new Random();
        int answer = rand.nextInt(10) +1;
        int guess = 0;
        int attempts = 0;
        public 

        //user's guess

        Scanner keyboard = new Scanner(System.in);


        GuessingGameGui gui = new GuessingGameGui();
        gui.setVisible(true);


        while(answer != guess)
        {
            try
            {

                System.out.print("Guess a number between 1 and 10: ");
                attempts++;
                guess = keyboard.nextInt();
                if (guess < 1 || guess > 10)
                    //throw new BadGuessException()  
                    throw new BadGuessException("invalid entry (" + attempts + " attempts so far)");
            }
            catch (BadGuessException e)
            {
                System.out.println(e.getMessage());
            }
            catch (InputMismatchException e)
            {
                System.out.println("Please enter integers only, and try again");
                keyboard.next(); //to get rid of infinite loop issue
            }
        }

        System.out.println("YOU GOT IT (" + attempts + "attempts )");

    }

}

GUI 类

public class GuessingGameGui extends JFrame {

    public GuessingGameGui() {

        final int WINDOW_WIDTH = 650;   // Window width in pixels
        final int WINDOW_HEIGHT = 250;  // Window height in pixels

        setTitle("Guessing Game");

        setSize(WINDOW_WIDTH, WINDOW_HEIGHT);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);


        JPanel north = new JPanel();
        JLabel lab1 = new JLabel("Guess a number between 1 and 10?");
        setLayout(new FlowLayout()); 
        north.add(lab1);
        add( north );

        JPanel center = new JPanel();

        final JTextField titleText = new JTextField();
        titleText.setPreferredSize( new Dimension( 200, 24 ) );
        setLayout(new FlowLayout());

        JButton button = new JButton("Guess");
        Action action = new AbstractAction()
        {
            @Override
            public void actionPerformed(ActionEvent e)
            {
                String typed = titleText.getText();
                int guess = Integer.parseInt(typed);
            }
        };

        titleText.addActionListener( action );

        button.addActionListener( action );
        center.add(titleText);
        center.add(button);
        add( center );

        JPanel south = new JPanel();
        JLabel lab2 = new JLabel("YOU GOT IT " + attempts);
        south.add(lab2);
        add( south );

       }

}

Answer 1

一种常见的方法是将逻辑对象添加到 GUI，例如通过构造函数。然后，每当 GUI 上发生某些情况时，您都需要在逻辑对象上调用正确的方法，并根据需要更新显示。