想不想带上好朋友来上一局三人扑克呢。
定义一个花色color变量和一个大小rank变量。
public class Card {
public int rank;
public String color;
@Override
public String toString() {
return String.format("[%s,%d]",color,rank);
}
}
我们先买一副新牌
public class Cards {
public static final String[] COLORS = {"♦","♥","♣","♠"};
//输入52张牌
public static List<Card> buyCard() {
List<Card> list = new ArrayList<>(52);
for (int i = 0; i < 4; i++) {
for (int j = 1; j <= 13; j++) {
String color = COLORS[i];
int rank = j;
Card card = new Card();
card.color = color;
card.rank =rank;
list.add(card);
}
}
return list;
}
} 
我截取了部分图片，我们可以发现这是一副新牌，按照花色大小放着，我们玩扑克的时候肯定要打乱扑克牌。
这个方法负责将扑克牌打乱
public static void mixed(List<Card> cards) {
for (int i = 51; i > 0; i--) {
Random random = new Random();
int j = random.nextInt(i);
Card c = cards.get(i);
cards.set(i,cards.get(j));
cards.set(j,c);
}
}
public static void main(String[] args) {
List<Card> list = buyCard();//获取新牌
mixed(list);//把牌打乱
List<List<Card>> lists = new ArrayList<>();
lists.add(new ArrayList<Card>());
lists.add(new ArrayList<Card>());
lists.add(new ArrayList<Card>());
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 3; j++) {
lists.get(j).add(list.remove(0));
}
}
System.out.println("三个人的牌分别是: ");
System.out.println(lists.get(0));
System.out.println(lists.get(1));
System.out.println(lists.get(2));
}
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
public class Card {
public int rank;
public String color;
@Override
public String toString() {
return String.format("[%s,%d]",color,rank);
}
}
public class Cards {
public static final String[] COLORS = {"♦","♥","♣","♠"};
//输入52张牌
public static List<Card> buyCard() {
List<Card> list = new ArrayList<>(52);
for (int i = 0; i < 4; i++) {
for (int j = 1; j <= 13; j++) {
String color = COLORS[i];
int rank = j;
Card card = new Card();
card.color = color;
card.rank =rank;
list.add(card);
}
}
return list;
}
public static void mixed(List<Card> cards) {
for (int i = 51; i > 0; i--) {
Random random = new Random();
int j = random.nextInt(i);
Card c = cards.get(i);
cards.set(i,cards.get(j));
cards.set(j,c);
}
}
public static void main(String[] args) {
List<Card> list = buyCard();//获取新牌
mixed(list);//把牌打乱
List<List<Card>> lists = new ArrayList<>();
lists.add(new ArrayList<Card>());
lists.add(new ArrayList<Card>());
lists.add(new ArrayList<Card>());
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 3; j++) {
lists.get(j).add(list.remove(0));
}
}
System.out.println("三个人的牌分别是: ");
System.out.println(lists.get(0));
System.out.println(lists.get(1));
System.out.println(lists.get(2));
}
}
