/*
需求： 使用LinkedList存储一副扑克牌，然后实现洗牌功能。
*/
//扑克类
class Poker{
String color; //花色
String num; //点数
public Poker(String color, String num) {
super();
this.color = color;
this.num = num;
}
@Override
public String toString() {
return "{"+color+num+"}";
}
}
public class Demo2 {
public static void main(String[] args) {
LinkedList pokers = createPoker();
shufflePoker(pokers);
showPoker(pokers);
}
//洗牌的功能
public static void shufflePoker(LinkedList pokers){
//创建随机数对象
Random random = new Random();
for(int i = 0 ; i <100; i++){
//随机产生两个索引值
int index1 = random.nextInt(pokers.size());
int index2 = random.nextInt(pokers.size());
//根据索引值取出两张牌，然后交换两张牌的顺序
Poker poker1 = (Poker) pokers.get(index1);
Poker poker2 = (Poker) pokers.get(index2);
pokers.set(index1, poker2);
pokers.set(index2, poker1);
}
}
//显示扑克牌
public static void showPoker(LinkedList pokers){
for(int i = 0 ; i<pokers.size() ; i++){
System.out.print(pokers.get(i));
//换行
if(i%10==9){
System.out.println();
}
}
}
//生成扑克牌的方法
public static LinkedList createPoker(){
//该集合用于存储扑克对象。
LinkedList list = new LinkedList();
//定义数组存储所有的花色与点数
String[] colors = {"黑桃","红桃","梅花","方块"};
String[] nums = {"A","2","3","4","5","6","7","8","9","10","J","Q","K"};
for(int i = 0 ; i < nums.length ; i++){
for(int j = 0 ; j<colors.length ; j++){
list.add(new Poker(colors[j], nums[i]));
}
}
return list;
}
}
/*需求： 使用LinkedList存储一副扑克牌，然后实现洗牌功能。
*///扑克类class Poker{String color; //花色String num;//点数public Poker(String color, String num) {super();this.color = color;this.num = num;}@Overridepublic String toString() {return "{"+color+num+"}";}}public class Demo2 {public static void main(String[] args) {LinkedList pokers = createPoker();shufflePoker(pokers);showPoker(pokers);}//洗牌的功能public static void shufflePoker(LinkedList pokers){//创建随机数对象Random random = new Random();for(int i = 0 ; i <100; i++){ //随机产生两个索引值int index1 = random.nextInt(pokers.size());int index2 = random.nextInt(pokers.size());//根据索引值取出两张牌，然后交换两张牌的顺序Poker poker1 = (Poker) pokers.get(index1);Poker poker2 = (Poker) pokers.get(index2);pokers.set(index1, poker2);pokers.set(index2, poker1);}}//显示扑克牌public static void showPoker(LinkedList pokers){for(int i = 0 ; i<pokers.size() ; i++){System.out.print(pokers.get(i));//换行if(i%10==9){System.out.println();}}}//生成扑克牌的方法public static LinkedList createPoker(){//该集合用于存储扑克对象。LinkedList list = new LinkedList();//定义数组存储所有的花色与点数String[] colors = {"黑桃","红桃","梅花","方块"};String[] nums = {"A","2","3","4","5","6","7","8","9","10","J","Q","K"};for(int i = 0 ; i < nums.length ; i++){for(int j = 0 ; j<colors.length ; j++){list.add(new Poker(colors[j], nums[i]));}}return list;}}