A sorted version of Poker (making poker, licensing)

Import java.util.ArrayList;
Import java.util.Collections;
Import Java.util.HashMap;
Import java.util.List;
Import Java.util.Map;

public class Practice01 {
public static void Main (string[] args) {
Pack poker, four colors
String[] colors={"?", "?", "?", "?"};
String[] nums={"3", "4", "5", "6", "7", "8", "9", "Ten", "J", "Q", "K", "A", "2"};
Define a map to install poker, the key is used to store 54 cards corresponding to the serial number, the value is the poker card
Map<integer,string> pokermap=new hashmap<> ();
54 Serial numbers to pack poker
List<integer> indexlist=new arraylist<> ();
int index=1;
It is used in the order of numbers, so the nums must be placed on the outer layer; If you sort by color, put colors in the outer layer.
for (String n:nums) {
for (String c:colors) {
Pokermap.put (index, c+n);
Indexlist.add (index);
index++;
}
}

Package Size King, after the previous step was completed, index=53
Pokermap.put (Index, "Xiao Wang");
Indexlist.add (index);
index++;
Pokermap.put (Index, "King");
Indexlist.add (index);
How to wash poker and assemble tools
Collections.shuffle (indexlist);
Licensing, using an array of numbers, numbered more than 51 of the three cards as cards
List<integer> user1=new arraylist<> ();
List<integer> user2=new arraylist<> ();
List<integer> user3=new arraylist<> ();
List<integer> dipai=new arraylist<> ();
Assign the player corresponding poker according to the remainder of the modulo 3
for (int i = 0; i < indexlist.size (); i++) {
if (I>=indexlist.size ()-3) {
Dipai.add (Indexlist.get (i));
}else if (i% 3==0) {
User1.add (Indexlist.get (i));
}else if (i% 3==1) {
User2.add (Indexlist.get (i));
}else if (i% 3==2) {
User3.add (Indexlist.get (i));
}
}
Sort, each player's poker is sorted separately
Collections.sort (user1);
Collections.sort (User2);
Collections.sort (USER3);
Collections.sort (Dipai);
Look at the card, the user's number as the map key to find the corresponding value
System.out.println ("Carter's Card:");
Printsee (Pokermap,user1);
System.out.println ("Galen's Cards:");
Printsee (POKERMAP,USER2);
System.out.println ("Sword Saint's Card:");
Printsee (POKERMAP,USER3);
System.out.println ("Hole Card:");
Printsee (Pokermap,dipai);
}

Write a method to see the cards and reduce the redundancy of the Code
private static void Printsee (Map<integer, string> Map, list<integer> user) {
Create a string container to stitch each player's poker
StringBuilder bul=new StringBuilder ("[");
for (int i=0;i<user.size (); i++) {
if (I<user.size ()-1) {
Bul.append (Map.get (User.get (i))). Append (",");
}else{
Bul.append (Map.get (User.get (i))). Append ("]");
}
}
Convert to String mode
System.out.println (Bul.tostring ());
}
}

A sorted version of Poker (making poker, licensing)