Question

班长：

import javax.swing.*;
import java.util.Random;
    public class Principal extends Guii {
    public int combo;
    public static Random bulion = new Random();
    public static boolean sansa;
    public static boolean input;
    public int status;

    //STATUS 0 = HEADS;
    //STATUS 1 = TAILS;

        public static void main(String[] args) {
            Guii lee = new Guii();
            Principal obiect = new Principal();

        }

        public int flip(){
        boolean sansa2 ;
        sansa2 = bulion.nextBoolean();
        if(sansa2){
           status = 0;
            display.setText("Heads");
        }
        else{
            status = 1;
            display.setText("Tails");
        }
        return status;

    }

     public int returnStatus(){
         return status;
     }
}

班级Guii：

    import java.awt.BorderLayout;
import javax.swing.*;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.beans.PropertyChangeListener;
import javax.swing.JButton;
import java.awt.Dimension;



public class Guii extends JFrame{
    Principal obiect;
    public JButton heads = new JButton("Heads");
    public JButton tails = new JButton("Tails");
    public JTextArea display = new JTextArea();
    public JTextArea comboul = new JTextArea();
        private JPanel panel;
        public int predictie;

        public Guii(){
            super("Heads or Tails");
            setContentPane(panel);

            pack();
            setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            setVisible(true);}
    public void dacaHeads(){
        if(heads.getModel().isPressed()) predictie = 0;
    }
    public void dacaTails(){
        if(tails.getModel().isPressed()) predictie = 1;

        heads.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e){
                dacaHeads();
                obiect.flip();

                if(predictie == obiect.returnStatus() ){
                    String s = comboul.getText();
                    int combo = Integer.valueOf(s);
                    s = Integer.toString(++combo);
                    comboul.setText("asdsaad");}
                else{
                    String z = "0";
                    comboul.setText("asdasda");
                }
            }
        });

        tails.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e){
                dacaTails();
                obiect.flip();
                if(predictie == obiect.returnStatus() ){
                    String s = comboul.getText();
                    int combo = Integer.valueOf(s);
                    s = Integer.toString(++combo);
                    comboul.setText(s);}
                else{
                    String z = "0";
                    comboul.setText(z);
                }
            }
    });}

问题是窗口打开，我看到了所有内容，但按下按钮时没有任何反应。我使用了来自intellij想法的gui设计师。谢谢。 //对不起第二个问题。删除它。

Answer 1

我不知道编写代码是否错误，但是函数dacaTails（）会将监听器添加到按钮，似乎从未调用过。你应该把addActionListener函数放在构造函数方法中。我想。

Swing，JTextAreas是空白的

1 个答案: