玩三人斗地主的发牌程序！ - 黑马程序员技术交流社区

import java.util.Comparator;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Set;
import java.util.TreeMap;
import java.util.TreeSet;
public class Demo3 {
/**
* 斗地主
* 0.有一副牌！
* 1.发牌！
* 2.洗牌!
*
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
String[] packer={"3","4","5","6","7","8","9","10","J","Q","K","A","2"};
String[] huase ={"♣","♥","♦","♠"};
//拼牌！
TreeMap<Integer, String> tr=new TreeMap<>();
int i=0;
for (int j = 0; j < packer.length; j++) {
for (int j2 = 0; j2 < huase.length; j2++) {
tr.put(i++, huase[j2].concat(packer[j]));
}
}
tr.put(i++, "☀"); //小王
tr.put(i++, "☀☀"); //大王
Set<Integer> set=tr.keySet(); //键集合
TreeSet<Integer> tree =new TreeSet<> (new Comparator<Integer>() {
@Override
public int compare(Integer i1, Integer i2) {
// TODO Auto-generated method stub
int i=i1-i2;
return i==0?0:i;
}
});
ArrayList<Integer> al=new ArrayList<>();
al.addAll(set); //获得键集合
Collections.shuffle(al); //打乱牌
//发牌（4组）
ArrayList<Integer> a2=new ArrayList<>();
ArrayList<Integer> a3=new ArrayList<>();
ArrayList<Integer> a4=new ArrayList<>();
ArrayList<Integer> a5=new ArrayList<>();
for (int j = 0; j < al.size(); j++) {
if(j>=al.size()-3)
a2.add(al.get(j));
else if(j%3==0)
a3.add(al.get(j));
else if(j%3==1)
a4.add(al.get(j));
else
a5.add(al.get(j));
}
洗牌(tree, a5);
洗牌(tree, a2);
洗牌(tree, a3);
洗牌(tree, a4);
//看牌了
看牌(a2,tr);
System.out.println();
看牌(a3,tr);
System.out.println();
看牌(a4,tr);
System.out.println();
看牌(a5,tr);
}
private static void 洗牌(TreeSet<Integer> tree, ArrayList<Integer> al) {
tree.clear();
tree.addAll(al);
al.clear();
al.addAll(tree);
}
private static void 看牌(ArrayList<Integer> al,
TreeMap<Integer, String> tr) {
// TODO Auto-generated method stub
for (Integer i : al) {
System.out.print(tr.get(i)+" ");
}
}
}

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