Java: Deaktivieren Sie alle JToggleButtons nach dem Senden - setEnabled (false);

Question

Ich entwickle gerade ein Buchungssystem als eine Aufgabe für meinen Abschluss. Was wäre der beste Weg, um ausgewählte JToggleButtons zu deaktivieren, nachdem eine Schaltfläche gedrückt wurde; So wären Sitze nach dem Kauf nicht verfügbar. Ich habe versucht, for-Schleifen und Arrays zu verwenden, hatte aber Probleme beim Abrufen, welche Taste gedrückt wurde. Hier ist mein Code, bitte führe es aus, wenn du kannst, du wirst es besser verstehen.

PS: Ich benutze keine Datenbank.

Vielen Dank.

// CM1203 Fundamentals of Computing with Java; Second Assignement. 
// Walter Carvalho - C1001984; 2012. 
// Cardiff University 

// Load Libraries 
import java.awt.*; 
import java.awt.event.*; 
import javax.swing.*; 
import java.util.*; 
import java.text.*; 

public class cinemaSystem extends JFrame implements ActionListener { 
    // Global Variables 
    boolean lselected, rselected, mselected; 
    double chargeDue; 
    int a, b, c; 
    static Ticket oapticket, childticket, adultticket; 
    JFrame frame = new JFrame(); // Creates JFrame 
    JLabel title, lchild, ladult, loap, ltotalprice, time; 
    JTextField child, adult, oap, totalprice; 
    JButton submit; 
    JRadioButton time1, time2, time3, time4, time5; // Radio Butons 
    JToggleButton l[][], m[][], r[][]; // Names grid of JButtons 
    JPanel panel1, panel2, panel3, panel4, panel5, panel6; 
    ArrayList<String> seatsAvailable = new ArrayList<String>(); 
    ArrayList<String> coupon = new ArrayList<String>(); 

    // Constructor 
    public cinemaSystem(){ 

      title = new JLabel("Cinema Booking System"); 
      title.setFont(new Font("Helvetica", Font.BOLD, 30)); 
      title.setLocation(12,5); 
      title.setSize(600, 60); 

      frame.setLayout(null); // Setting Grid Layout 
      // panel1.setLayout(new GridLayout(seat,row)); 
      l = new JToggleButton[4][4]; // Allocating Size of Grid 
      panel1 = new JPanel(new GridLayout(4,4)); 
      panel1.setBounds(20, 95, 220, 140); 
      for(int y = 0; y <4 ; y++){ 
        for(int x = 0; x < 4; x++){ 
         l[x][y] = new JToggleButton("L" + y + x); // Creates New JButton 
         l[x][y].addActionListener(this); 
         seatsAvailable.add("L" + y + x); 
         panel1.add(l[x][y]); //adds button to grid 
        } 
      } 

      m = new JToggleButton[4][2]; // Allocating Size of Grid 
      panel2 = new JPanel(new GridLayout(2,4)); 
      panel2.setBounds(240, 165, 220, 70); 
      for(int y = 0; y <2 ; y++){ 
        for(int x = 0; x < 4; x++){ 
         m[x][y] = new JToggleButton("M" + y + x); // Creates New JButton 
         m[x][y].addActionListener(this); 
         seatsAvailable.add("M" + y + x); 
         panel2.add(m[x][y]); //adds button to grid 
        } 
      } 

      r = new JToggleButton[4][4]; // Allocating Size of Grid 
      panel3 = new JPanel(new GridLayout(4,4)); 
      panel3.setBounds(460, 95, 220, 140); 
      for(int y = 0; y <4 ; y++){ 
        for(int x = 0; x < 4; x++){ 
         r[x][y] = new JToggleButton("R" + y + x); // Creates New JButton 
         r[x][y].addActionListener(this); 
         seatsAvailable.add("R" + y + x); 
         panel3.add(r[x][y]); //adds button to grid 
        } 
      } 

      panel4 = new JPanel(new FlowLayout()); 
      panel4.setBounds(0, 250, 300, 70); 

      lchild = new JLabel("Child"); 
      child = new JTextField("0", 2); 
      child.addActionListener(this); 

      ladult = new JLabel("Adult"); 
      adult = new JTextField("0", 2); 
      adult.addActionListener(this); 

      loap = new JLabel("OAP"); 
      oap = new JTextField("0", 2); 
      oap.addActionListener(this); 

      submit = new JButton("Submit"); 
      submit.addActionListener(this); 

      oapticket = new Ticket(4.70); 
      childticket = new Ticket(3.50); 
      adultticket = new Ticket(6.10);  

      child.addKeyListener(new MyKeyAdapter()); 
      oap.addKeyListener(new MyKeyAdapter()); 
      adult.addKeyListener(new MyKeyAdapter()); 

      panel4.add(lchild); 
      panel4.add(child); 
      panel4.add(ladult); 
      panel4.add(adult); 
      panel4.add(loap); 
      panel4.add(oap); 
      panel4.add(submit); 

      panel5 = new JPanel(new FlowLayout()); 
      panel5.setBounds(240, 250, 300, 70); 

      ltotalprice = new JLabel("Charge Due (£): "); 
      totalprice = new JTextField("£0.00", 5); 
      totalprice.setEnabled(false); 
      panel5.add(ltotalprice); 
      panel5.add(totalprice); 

      panel6 = new JPanel(new FlowLayout()); 
      panel6.setBounds(0, 55, 560, 30); 

      time = new JLabel("Please select a film time: "); 
      time1 = new JRadioButton("13:00", true); 
      time2 = new JRadioButton("15:00", false); 
      time3 = new JRadioButton("17:00", false); 
      time4 = new JRadioButton("19:00", false); 
      time5 = new JRadioButton("21:00", false); 

      ButtonGroup group = new ButtonGroup(); 
      group.add(time1); 
      group.add(time2); 
      group.add(time3); 
      group.add(time4); 
      group.add(time5); 
      panel6.add(time); 
      panel6.add(time1); 
      panel6.add(time2); 
      panel6.add(time3); 
      panel6.add(time4); 
      panel6.add(time5); 
      time1.addActionListener(this); 
      time2.addActionListener(this); 
      time3.addActionListener(this); 
      time4.addActionListener(this); 
      time5.addActionListener(this); 
      frame.add(title); 
      frame.add(panel1); 
      frame.add(panel2); 
      frame.add(panel3); 
      frame.add(panel4); 
      frame.add(panel5); 
      frame.add(panel6); 
      frame.setPreferredSize(new Dimension(700, 350)); 
      frame.setTitle("Cinema Booking"); 
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
      frame.pack(); //sets appropriate size for frame 
      frame.setVisible(true); //makes frame visible 


    } 

    // Calculates Charge Due for current transaction. 
    public double calcChargeDue(){ 
     DecimalFormat df = new DecimalFormat("#.##"); 
     double chargeDue = 0.0; 
     chargeDue = (a*childticket.price) + (b*oapticket.price) + (c*adultticket.price); 
     totalprice.setText("£"+df.format(chargeDue)); 
     return chargeDue; 
    } 

    // Method to check if the number of people matches the number of seats selected. 
    public void check(){ 
     int check = coupon.size(); 
     int noTickets = a + b + c; 
     if (check != noTickets){ 
      submit.setEnabled(false); 
     } 
     else { 
      submit.setEnabled(true); 
     } 

    } 

    // Ticket Object 
    public class Ticket { 

     double price; 

     // Constructor 
     public Ticket(double cost) { 
      price = cost; 
     } 

     public double getTicketPrice() { 
      return price; 
     } 

    } 

    public void actionPerformed(ActionEvent e) 
    { 

     a = Integer.parseInt(child.getText()); 
     b = Integer.parseInt(oap.getText()); 
     c = Integer.parseInt(adult.getText()); 

     for(int y = 0; y < 4; y++){ 
      for(int x = 0; x < 4; x++){ 

       lselected = l[x][y].isSelected(); 
       rselected = r[x][y].isSelected(); 

       if (e.getSource() == l[x][y]) { 
        if(lselected == true){ 
         coupon.add(e.getActionCommand()); 
         calcChargeDue(); 
         check(); 
        } 
        else { 
         coupon.remove(e.getActionCommand()); 
         check(); 
        } 
       } 

       if (e.getSource() == r[x][y]) { 
        if(rselected == true){ 
         coupon.add(e.getActionCommand()); 
         calcChargeDue(); 
         check(); 
        } 
        else { 
         coupon.remove(e.getActionCommand()); 
         check(); 
        } 
       } 

       if (e.getSource() == oap){ 
        calcChargeDue(); 
        check(); 
       } 

       if (e.getSource() == adult){ 
        calcChargeDue(); 
        check(); 
       } 

       if (e.getSource() == child){ 
        calcChargeDue(); 
        check(); 
       } 

      } 
     } 

     for(int y = 0; y < 2; y++){ 
      for(int x = 0; x < 4; x++){ 

       mselected = m[x][y].isSelected(); 

       if (e.getSource() == m[x][y]) { 
        if(mselected == true){ 
         coupon.add(e.getActionCommand()); 
         calcChargeDue(); 
         check(); 
        } 
        else { 
         coupon.remove(e.getActionCommand()); 
         check(); 
        } 
       } 
      } 
     } 

     if(time1 == e.getSource()){ 

     } 

     if(time2 == e.getSource()){ 

     } 

     if(time3 == e.getSource()){ 

     } 

     if(time4 == e.getSource()){ 

     } 

     if(time5 == e.getSource()){ 

     } 

     if(submit == e.getSource()) { 

      for(int y = 0; y < 4; y++){ 
       for(int x = 0; x < 4; x++){ 

        lselected = l[x][y].isSelected(); 
        rselected = r[x][y].isSelected(); 

        if (lselected == true) { 
          l[x][y].setEnabled(false); 
        } 

        if (rselected == true) { 
          r[x][y].setEnabled(false); 
        } 

       } 
      } 

      for(int y = 0; y < 2; y++){ 
       for(int x = 0; x < 4; x++){ 

        mselected = m[x][y].isSelected(); 

        if (mselected == true) { 
          m[x][y].setEnabled(false); 
        } 
       } 
      } 

      Collections.sort(coupon); 
      System.out.println("Here's your ticket:"); 
      System.out.println(coupon); 
      System.out.println("Child: " + child.getText()); 
      System.out.println("Adult: " + adult.getText()); 
      System.out.println("OAP: " + oap.getText()); 
      System.out.println("Total Price: " + totalprice.getText()); 
      System.out.println("Thank you. Enjoy your film."); 
      System.out.println(" "); 
      coupon.clear(); 
      child.setText("0"); 
      adult.setText("0"); 
      oap.setText("0"); 
     } 

    } 

    // Main Class 
    public static void main(String[] args) { 
      new cinemaSystem(); //makes new ButtonGrid with 2 parameters 
    } 
} 

Related: Multiple Bookings System

Answer 1

Die Lösung ist eine List<AbstractButton> oder eine Anordnung zu verwenden und dann die Schleife durch die Liste oder Array-Überprüfung für die Tasten sehen isSelected() true zurück.

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