<分区>
我正在尝试创建一个二十一点游戏。
首先，我使用类构造函数创建了一个名为 deck size 52 的数组。
public Deck(){
for(int i=0; i<13; i++){ //Spades
if(i>9){
deck[i]=10;
}
else{
deck[i]=(i+1);
}
}
for(int i=13; i<26; i++){ //Hearts
if(i>21){
deck[i]=10;
}
else{
deck[i]=(i-12);
}
}
for(int i=26; i<39; i++){ //Clubs
if(i>34){
deck[i]=10;
}
else{
deck[i]=(i-25);
}
}
for(int i=39; i<52; i++){ //Diamonds
if(i>47){
deck[i]=10;
}
else{
deck[i]=(i-38);
}
}
}
然后，我还在 Deck 类中创建了一个 shuffleDeck 函数。
public void shuffleDeck(){
int[] temp = new int[52];
int[] indexChecker = new int[52];
for(int i=0 ; i<52 ; i++){
indexChecker[i]=0;
}
int index = 0;
for(int i=0; i<52 ; i++){
index = number.nextInt(52);
for(i=0; i<52 ; i++){
while(index == indexChecker[i])
index = number.nextInt(52);
}
temp[i] = deck[index]; //The error is here
}
for(int i=0; i<52; i++){
deck[i] = temp [i];
}
}
我使用这个算法来确保我的随机索引生成器不会生成相同的数字来洗牌。
但是当我尝试在主类中对其进行随机播放时，它不起作用。
public static void main(String[] args) {
Deck card = new Deck();
System.out.println("Decks are created");
card.getDeck();
System.out.println("Shuffling...");
card.shuffleDeck();
System.out.println("Shuffled deck.");
card.getDeck();
输出:
run:
Decks are created
0-1
1-2
2-3
3-4
4-5
5-6
6-7
7-8
8-9
9-10
10-10
11-10
12-10
13-1
14-2
15-3
16-4
17-5
18-6
19-7
20-8
21-9
22-10
23-10
24-10
25-10
26-1
27-2
28-3
29-4
30-5
31-6
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 52
32-7
33-8
34-9
35-10
36-10
37-10
38-10
39-1
40-2
at blackjack.pkg5.pkg0.Deck.shuffleDeck(Deck.java:69)
41-3
42-4
43-5
44-6
45-7
at blackjack.pkg5.pkg0.Blackjack50.main(Blackjack50.java:13)
46-8
47-9
48-10
49-10
50-10
51-10
Shuffling...
C:\Users\Afrie Irham\AppData\Local\NetBeans\Cache\8.2\executor-snippets\run.xml:53: Java returned: 1
BUILD FAILED (total time: 0 seconds)