我有卡片和甲板课程。 Deck类功能和Card对象的arraylist。我需要从Deck中绘制一张随机卡并显示在GUI标签中。我正试图在＆＃34; deck＆＃34;中创建JPG卡的路径。资产文件夹，由于某种原因，GUI组件不喜欢套装和等级值。可能是变量范围问题....以下是我在按钮事件中的内容：path.concat（d.drawRandomCard（）。tostring（））。concat（ftype）。我有这个代码在我的非GUI测试类中工作。我试图以一种OOP方式使View与我的模型一起工作。
import javax.swing.*;
import java.awt.event.*;
import java.awt.Color;
import java.awt.Image;
import javax.swing.ImageIcon;
public class ShowCards implements ActionListener {
final static String LABEL_TEXT = "Random Card!!";
JFrame frame;
JPanel contentPane;
JButton drawCard;
Card c;
Deck d;
JLabel dieFace;
JLabel testing;
int[] location = new int[2];
Image image;
String path = "deck/";
String ftype = ".jpg";
public ShowCards(){
JButton drawCard;
JLabel dieFace;
JLabel testing;
/* Create and set up the frame */
frame = new JFrame("Roll");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
/* Create a content pane with a BoxLayout and
empty borders */
contentPane = new JPanel();
contentPane.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
contentPane.setBackground(Color.white);
contentPane.setLayout(new BoxLayout(contentPane,BoxLayout.PAGE_AXIS));
/* Create a label that shows a die face */
dieFace = new JLabel(new ImageIcon(this.getClass().getResource("deck/h04.jpg")));
dieFace.setAlignmentX(JLabel.CENTER_ALIGNMENT);
dieFace.setBorder(BorderFactory.createEmptyBorder(0, 0, 10, 0));
contentPane.add(dieFace);
/* Create a label for testing */
testing = new JLabel("Kiley");
testing.setAlignmentX(JLabel.CENTER_ALIGNMENT);
testing.setBorder(BorderFactory.createEmptyBorder(0, 0, 10, 0));
contentPane.add(testing);
/* Create a Roll Die button */
drawCard = new JButton("Draw Card");
drawCard.setAlignmentX(JButton.CENTER_ALIGNMENT);
drawCard.addActionListener(this);
contentPane.add(drawCard);
/* Add content pane to frame */
frame.setContentPane(contentPane);
/* Size and then display the frame. */
frame.pack();
frame.setVisible(true);
}
/**
* Handle a button click
* pre: none
* post: A die has been rolled. Matching image shown.
*/
public void actionPerformed(ActionEvent event) {
String drawncard = d.store.getCardSuit().toString()+d.store.getCardRank().toString();
//dieFace.setIcon(new ImageIcon(this.getClass().getResource("deck/d.drawRandomCard() + ".jpg")));
//dieFace.setIcon(new ImageIcon(this.getClass().getResource("deck/s13.jpg")));
//dieFace = new JLabel(new ImageIcon(this.getClass().getResource("deck/" + d.drawRandomCard().toString()+ ".jpg")));
//dieFace = new JLabel(new ImageIcon(this.getClass().getResource(path.concat(d.store.getCardSuit().toString()).concat(d.store.getCardRank().toString()).concat(ftype))));
dieFace = new JLabel(new ImageIcon(this.getClass().getResource(path.concat(drawncard).concat(ftype))));
// parsing dieFace = new JLabel(new ImageIcon(this.getClass().getResource(path.concat(String.valueOf(d.drawRandomCard().toString())).concat(ftype))));
//dieFace = new JLabel(new ImageIcon(this.getClass().getResource("deck/s13.jpg")));
dieFace.setAlignmentX(JLabel.CENTER_ALIGNMENT);
dieFace.setBorder(BorderFactory.createEmptyBorder(0, 0, 10, 0));
contentPane.add(dieFace);
/* Add content pane to frame */
frame.setContentPane(contentPane);
/* Size and then display the frame. */
frame.pack();
frame.setVisible(true);
/* int newRoll;
newRoll = (int)(6 * Math.random() + 1);
if (newRoll == 1) {
dieFace.setIcon(new ImageIcon("die1.gif"));
} else if (newRoll == 2) {
dieFace.setIcon(new ImageIcon("die2.gif"));
} else if (newRoll == 3) {
dieFace.setIcon(new ImageIcon("die3.gif"));
} else if (newRoll == 4) {
dieFace.setIcon(new ImageIcon("die4.gif"));
} else if (newRoll == 5) {
dieFace.setIcon(new ImageIcon("die5.gif"));
} else if (newRoll == 6) {
dieFace.setIcon(new ImageIcon("die6.gif"));
}
*/
}
public Image getImage(){
ImageIcon ii = new ImageIcon(this.getClass().getResource("deck/h04.jpg"));
image = ii.getImage();
return image;
}
public void setLocation(int x, int y){
location[0] = x;
location[1] = y;
}
public int [] getLocation(){
return location;
}
/**
* Create and show the GUI.
*/
private static void runGUI() {
JFrame.setDefaultLookAndFeelDecorated(true);
ShowCards greeting = new ShowCards();
}
public static void main(String[] args) {
/* Methods that create and show a GUI should be
run from an event-dispatching thread */
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
runGUI();
}
});
}
}
import java.util.Random;
import java.util.ArrayList;
public class Deck
{
private ArrayList<Card> cards;
String mysuit,myrank;
Card store; // create an object variable to store card drawn
public Deck()
{
cards = new ArrayList<Card>();
for(int a =0; a<=3; a++)
{
for(int b =0; b<=12;b++)
{
cards.add(new Card(a,b));
}
}
}
public Card drawRandomCard()
{
Random generator = new Random();
int index = generator.nextInt(cards.size());
//return cards.remove(index);
//return cards.get();
store = cards.get(index);
mysuit = store.getCardSuit().toString();
myrank = store.getCardRank().toString();
return cards.remove(index);
}
public String toString()
{
String result = "Cards remaining in deck: " + cards;
return result;
}
}
public class Card
{
//private String suit;
private int suit, rank;
//private int type, value;
//private String[] cardSuit = {"Clubs", "Spades", "Diamonds", "Hearts"};
//private String[] cardRank = {"Ace", "King", "Queen", "Jack", "10",
// "9", "8", "7", "6", "5", "4", "3", "2"};
private String[] cardSuit = {"c", "d", "h", "s"};
private String[] cardRank = {"01", "02", "03", "04", "05",
"06", "07", "08", "09", "10", "11", "12", "13"};
//constructor called to fill in Deck object
public Card(int suit, int rank)
{
this.suit = suit;
this.rank = rank;
}
//access data
public int getSuit()
{
return this.suit;
}
public int getRank()
{
return this.rank;
}
// have to change Card class to get letter + number combos
//access data
public String getCardSuit()
{
return cardSuit[this.suit];
}
public String getCardRank()
{
return cardRank[this.rank];
}
/* public String toString(){
String cardinfo;
cardinfo = this.suit + " card " + this.rank;
return cardinfo;
} */
public String toString()
{
//String finalCard = cardSuit[this.suit] + " of " + cardRank[this.rank];
String finalCard = cardSuit[this.suit] + cardRank[this.rank];
return finalCard;
}
}// end class
我正在尝试构建一张随机卡的路径。例如，4个心脏将位于路径：deck / h04.jpg。我需要解压缩或解析Card对象，以便我可以连接：deck / + h + 04 + .jpg。出于某种原因，＆＃34; h04＆＃34;片段在GUI组件中不起作用。
这是我用来测试Card和Deck的测试器类。您可以看到资源的路径在非GUI版本中工作：
public class TestClasses {
public static void main(String[] args) {
// TODO Auto-generated method stub
Card c = new Card(3,12);
System.out.println(c.getRank());
System.out.println(c.getSuit());
System.out.println(c);
Deck d = new Deck();
System.out.println("Random card:" + d.drawRandomCard());
System.out.println("Random card rank:"+ d.store.getCardRank());
System.out.println("Random card suit:"+ d.store.getCardSuit());
System.out.println("Random card:" + d.drawRandomCard());
// we need to parse THIS instance of the random card to display it.
// A new card is removed each time the method is fired!
System.out.println("Random card:" + d);
System.out.println("Card Suit:" + c.getCardSuit());
System.out.println("Card Rank:" + c.getCardRank());
System.out.println("Random card:" + d.drawRandomCard().toString());
System.out.println("Random card:" + d.drawRandomCard().getSuit());
System.out.println("Random card:" + d.drawRandomCard().getRank());
System.out.println("Random card:" + d.drawRandomCard().getCardSuit()+"Hello");
System.out.println("Random card:" + d.drawRandomCard().getCardRank()+"09");
System.out.println("Random card rank:"+ d.store.getCardRank());
System.out.println("Random card suit:"+ d.store.getCardSuit());
System.out.println(d);
String drawncard = d.store.getCardSuit().toString()+d.store.getCardRank().toString();
System.out.println("Card pulled from deck:" + drawncard);
//System.out.println();
}
}