無法改變多次點擊按鈕的顏色

Question

我打算建造一個機器人地板。我的要求是，只需施加障礙即改變按鈕的顏色，即可在運行時設置樓層。到目前爲止，只需按下按鈕即可更改按鈕的顏色，但如果再次按下該特定按鈕，我想將其更改回其以前的顏色。按下偶數次點擊後，我無法將按鈕的顏色改回原來的顏色。如果點擊的數量是偶數，按鈕不應該着色，但是它的奇數應該改變它的顏色。以下是我的代碼

import java.awt.event.ActionEvent; 
import java.awt.event.ActionListener; 
import java.awt.*; 
import javax.swing.*; 
import java.awt.event.*; 
import javax.swing.event.*; 
import javax.swing.JFrame; 

class butMaddFrame extends JFrame implements ActionListener 
{ 
int x=20; 
int y=20; 
JButton[][] buttons = new JButton[x][y]; 
    JPanel mPanel = new JPanel(); 
    JPanel bPanel = new JPanel(); 
    JPanel cPanel = new JPanel(); 
    JTextArea scoreKeeper = new JTextArea(); 
    Container c = getContentPane(); 
    int[][] intArray = new int[x][y]; 

    public butMaddFrame() 
    { 
     butGen(); 
     score2(); 
     //cPanel.add(scoreKeeper); 
     bPanel.setLayout(new GridLayout(x,y)); 
     mPanel.setLayout(new BorderLayout()); 
     mPanel.add(bPanel, BorderLayout.CENTER); 
     // mPanel.add(cPanel, BorderLayout.LINE_END); 
     c.add(mPanel); 
     setTitle("ButtonMaddness"); 
     setSize(500,400); 
     setLocation(200,200); 
      setVisible(true); 
    } 

    private void butGen() 
    { 
     for(int i=0;i<x;i++) 
      for(int j=0;j<y;j++) 
      { 
       buttons[i][j] = new JButton(String.valueOf(i)+"x"+String.valueOf(j)); 
       buttons[i][j].setActionCommand("button" +i +"_" +j); 
       buttons[i][j].addActionListener(this); 
       buttons[i][j].setSize(100, 100); 
       bPanel.add(buttons[i][j]); 
      } 
    } 

    private void score() 
    { 

    } 

    private void score2() 
    { 
     for(int i=0;i<x;i++) 
      for(int j=0;j<y;j++) 
       // buttons[i][j].setText(String.valueOf(intArray[i][j])); 
      buttons[i][j].setText(""); 
     } 

    public void actionPerformed(ActionEvent e) 
    {   
     if(e.getActionCommand().contains("button")) 
     { 
      String str = e.getActionCommand().replaceAll("button", ""); 
      System.out.println(str); 
      String[] v = str.split("_"); 
      int i = Integer.parseInt(v[0]); 
      int j = Integer.parseInt(v[1]);    
      intArray[i][j]++; 
       buttons[i][j].setBackground(Color.BLUE); 
     //buttons[i][j].setBackground(null); 
     System.out.println(e.getActionCommand() +" " +i +" " +j); 
     // System.out.println(); 
     score2(); 
    } 
    } 
} 

。

import java.awt.*; 
import javax.swing.*; 
import java.awt.event.*; 
import javax.swing.event.*; 
import javax.swing.JButton; 
import javax.swing.JFrame; 
import javax.swing.SwingConstants; 
import javax.swing.SwingUtilities; 

public class buttonMaddness { 

    public static void main(String[] args) 
    { 
      butMaddFrame myFrame = new butMaddFrame(); 
      myFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
    } 
} 

Answer 1

要設置按鈕的顏色爲其默認顏色是否已經被點擊了兩次：

int check [][]= new int [100][100]; 

public void actionPerformed(ActionEvent e) 
{   
    if(e.getActionCommand().contains("button")) 
    { 
     String str = e.getActionCommand().replaceAll("button", ""); 
     System.out.println(str); 
     String[] v = str.split("_"); 
     int i = Integer.parseInt(v[0]); 
     int j = Integer.parseInt(v[1]);    
     intArray[i][j]++; 
     if(check[i][j]!=1){ 
      buttons[i][j].setBackground(Color.BLUE); 
      check[i][j]=1; 
     } 
     else{ 
      buttons[i][j].setBackground(null); 
      check[i][j]=0; 
     } 
    //buttons[i][j].setBackground(null); 
    System.out.println(e.getActionCommand() +" " +i +" " +j); 
    // System.out.println(); 
    score2(); 
} 

}