如何在java中使用Jbutton中的if语句

Question

我正在尝试使用Jbutton动作侦听器单击以将我的按下变量从0设置为1,2或3.如果此数字变为切换，则将卡套件文本字段。我的问题是不是我的设置按变量为一个新的号码，只是将其保持在0

我的主文件

/* 
* To change this license header, choose License Headers in Project Properties. 
* To change this template file, choose Tools | Templates 
* and open the template in the editor. 
*/ 
package cardapp; 

/** 
* 
* @author Angela 
*/ 
import javax.swing.*; 
import java.awt.*; 
import java.awt.event.*; 

public class CardApp extends JFrame implements ActionListener { 

    private JButton oneButton, 
        twoButton, 
        threeButton; 
    private int width = 25; 
    private int height = 15; 
    private JTextField TextField = new JTextField(3); 
    Hand handObject = new Hand(); 
    private int pressedNumber; 


    public CardApp() { 

     JPanel buttonPanel = new JPanel(new GridLayout(1, 3));   



     oneButton = new JButton("1"); 
     twoButton = new JButton("2"); 
     threeButton = new JButton("3"); 


     // Listen for events on each button 
     oneButton.addActionListener(this); 
     twoButton.addActionListener(this); 
     threeButton.addActionListener(this); 

     // Add each to the panel of buttons 
     buttonPanel.add(oneButton); 
     buttonPanel.add(twoButton); 
     buttonPanel.add(threeButton); 
     // Add everything to a main panel attached to the content pane 
     JPanel mainPanel = new JPanel(new BorderLayout()); 
     getContentPane().add(mainPanel); 
     mainPanel.add(TextField, BorderLayout.CENTER); 
     mainPanel.add(buttonPanel, BorderLayout.SOUTH); 

     setTitle("Sabacc Example by Angela Rucci"); 
     setSize(375, 200); 
     setVisible(true); 
     setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
     handObject.Discards(pressedNumber); 
     TextField.setText(handObject.ListOfCards()); 

    } 


    public void actionPerformed(ActionEvent e) { 

       if (e.getSource() == oneButton){ 
         pressedNumber = 1; 
         handObject.Discards(pressedNumber); 
         } 
       if (e.getSource() == twoButton){ 
         pressedNumber = 2; 
         handObject.Discards(pressedNumber); 
         } 
       if (e.getSource() == threeButton){ 
         pressedNumber = 3; 
         handObject.Discards(pressedNumber); 
         } 

       TextField.setText(handObject.ListOfCards()); 



    } 


public static void main(String[] args) { 
    CardApp c = new CardApp(); 
} 

} 

我的文件中，这样会产生按下的按钮了一套新衣服。

/* 
* To change this license header, choose License Headers in Project Properties. 
* To change this template file, choose Tools | Templates 
* and open the template in the editor. 
*/ 
package cardapp; 
import java.util.Random; 
//import javax.swing.JButton; 
import javax.swing.JOptionPane; 
//import javax.swing.*; 
//import java.awt.*; 
//import java.awt.event.*; 

/** 
* 
* @author Angela 
*/ 

public class Hand { 
String [] Suits = {"C", "H", "S", "D"}; 
String [] probability = {"C","H","R","S","D"}; 
Random randomInt = new Random(); 
String RandomSuit; 
String RandomShuffle; 
String ThreeSuits; 
String LeftSuit; 
String MiddleSuit; 
String RightSuit; 
int pressed; 


     public int Discards(int pressedNumber){ 
          Randomizer(); 
       return pressed; 

      } 



     public void Randomizer(){ 

      int RandomSuitNumber = randomInt.nextInt(4);//this is generator a random number 

      //------------------Decide what hand to randomize --------------------------// 
      if (pressed==1){ 
        LeftSuit= Suits[RandomSuitNumber]; 

        } 

       if (pressed==2){ 
       MiddleSuit=Suits[RandomSuitNumber]; 

       } 

       if (pressed==3){ 
        RightSuit=Suits[RandomSuitNumber];} 

      //----------------20% chance of new random set------------------------------------// 
      int ProabilityRandomNum = randomInt.nextInt(5); 
      RandomShuffle= probability[ProabilityRandomNum]; 


      //------------If proability array equals R then change all of the suits----------// 
      if (RandomShuffle.equals("R") || pressed== 0){ 

       JOptionPane.showMessageDialog(null, "Randomized Hand!"); 

       int leftNumber = randomInt.nextInt(4); 
       int middleNumber = randomInt.nextInt(4); 
       int rightNumber = randomInt.nextInt(4); 

       LeftSuit= Suits[leftNumber]; 
       MiddleSuit= Suits[middleNumber]; 
       RightSuit= Suits[rightNumber];} 

      ThreeSuits = (LeftSuit + MiddleSuit + RightSuit); 
     } 


     public String ListOfCards(){ 
       return ThreeSuits; 
      } 



     public void GameOver(){ 
       if (LeftSuit == MiddleSuit && MiddleSuit == RightSuit && RightSuit== LeftSuit){ 
        JOptionPane.showMessageDialog(null, "WINNER!!"); 
       } 
      } 
} 

Answer 1

您的pressedNumber从CardApp值传递给Hand，但从来没有真正使用它......

public int Discards(int pressedNumber) { 
    Randomizer(); 
    return pressed; 
} 

您是不是要找像做...

public int Discards(int pressedNumber) { 
    pressed = pressedNumber; 
    Randomizer(); 
    return pressed; 
}