我必须编写一个程序，创建5副甲板，选择5个随机卡，并评估它们以返回卡组的值。等等9是皇家郁郁葱葱，2是2对。
到目前为止我有三节课。一个代表卡，一个代表甲板，一个代表手评估。我还没有一个主程序可以调用这些，并想知道如何做到这一点。例如，我想要一个曾经运行过的主程序，分散5个随机卡的5只手，对它们进行评估，然后返回值。我有一切必要的课程，只是不知道如何让一个班级让它运行。
public class Card{
private short rank, suit;
private static String[] suits = { "hearts", "spades", "diamonds", "clubs" };
private static String[] ranks = { "Ace", "2", "3", "4", "5", "6", "7",
"8", "9", "10", "Jack", "Queen", "King" };
public static String rankAsString( int __rank ) {
return ranks[__rank];
}
Card(short suit, short rank)
{
this.rank=rank;
this.suit=suit;
}
public @Override String toString()
{
return ranks[rank] + " of " + suits[suit];
}
public short getRank() {
return rank;
}
public short getSuit() {
return suit;
}
}
import java.util.Random;import java.util.ArrayList;
public class Deck {
private ArrayList<Card> cards;
Deck()
{
cards = new ArrayList<Card>();
int index_1, index_2;
Random generator = new Random();
Card temp;
for (short a=0; a<=3; a++)
{
for (short b=0; b<=12; b++)
{
cards.add( new Card(a,b) );
}
}
int size = cards.size() -1;
for (short i=0; i<100; i++)
{
index_1 = generator.nextInt( size );
index_2 = generator.nextInt( size );
temp = (Card) cards.get( index_2 );
cards.set( index_2 , cards.get( index_1 ) );
cards.set( index_1, temp );
}
}
public Card drawFromDeck()
{
return cards.remove( cards.size()-1 );
}
public int getTotalCards()
{
return cards.size();
//we could use this method when making
//a complete poker game to see if we needed a new deck
}
}
public class Hand {
private Card[] cards;
private int[] value;
Hand(Deck d)
{
value = new int[6];
cards = new Card[5];
for (int x=0; x<5; x++)
{
cards[x] = d.drawFromDeck();
}
int[] ranks = new int[14];
//miscellaneous cards that are not otherwise significant
int[] orderedRanks = new int[5];
boolean flush=true, straight=false;
int sameCards=1,sameCards2=1;
int largeGroupRank=0,smallGroupRank=0;
int index=0;
int topStraightValue=0;
for (int x=0; x<=13; x++)
{
ranks[x]=0;
}
for (int x=0; x<=4; x++)
{
ranks[ cards[x].getRank() ]++;
}
for (int x=0; x<4; x++) {
if ( cards[x].getSuit() != cards[x+1].getSuit() )
flush=false;
}
for (int x=13; x>=1; x--)
{
if (ranks[x] > sameCards)
{
if (sameCards != 1)
//if sameCards was not the default value
{
sameCards2 = sameCards;
smallGroupRank = largeGroupRank;
}
sameCards = ranks[x];
largeGroupRank = x;
} else if (ranks[x] > sameCards2)
{
sameCards2 = ranks[x];
smallGroupRank = x;
}
}
if (ranks[1]==1) //if ace, run this before because ace is highest card
{
orderedRanks[index]=14;
index++;
}
for (int x=13; x>=2; x--)
{
if (ranks[x]==1)
{
orderedRanks[index]=x; //if ace
index++;
}
}
for (int x=1; x<=9; x++)
//can't have straight with lowest value of more than 10
{
if (ranks[x]==1 && ranks[x+1]==1 && ranks[x+2]==1 &&
ranks[x+3]==1 && ranks[x+4]==1)
{
straight=true;
topStraightValue=x+4; //4 above bottom value
break;
}
}
if (ranks[10]==1 && ranks[11]==1 && ranks[12]==1 &&
ranks[13]==1 && ranks[1]==1) //ace high
{
straight=true;
topStraightValue=14; //higher than king
}
for (int x=0; x<=5; x++)
{
value[x]=0;
}
//start hand evaluation
if ( sameCards==1 ) {
value[0]=1;
value[1]=orderedRanks[0];
value[2]=orderedRanks[1];
value[3]=orderedRanks[2];
value[4]=orderedRanks[3];
value[5]=orderedRanks[4];
}
if (sameCards==2 && sameCards2==1)
{
value[0]=2;
value[1]=largeGroupRank; //rank of pair
value[2]=orderedRanks[0];
value[3]=orderedRanks[1];
value[4]=orderedRanks[2];
}
if (sameCards==2 && sameCards2==2) //two pair
{
value[0]=3;
//rank of greater pair
value[1]= largeGroupRank>smallGroupRank ? largeGroupRank : smallGroupRank;
value[2]= largeGroupRank<smallGroupRank ? largeGroupRank : smallGroupRank;
value[3]=orderedRanks[0]; //extra card
}
if (sameCards==3 && sameCards2!=2)
{
value[0]=4;
value[1]= largeGroupRank;
value[2]=orderedRanks[0];
value[3]=orderedRanks[1];
}
if (straight && !flush)
{
value[0]=5;
value[1]=4;
}
if (flush && !straight)
{
value[0]=6;
value[1]=orderedRanks[0]; //tie determined by ranks of cards
value[2]=orderedRanks[1];
value[3]=orderedRanks[2];
value[4]=orderedRanks[3];
value[5]=orderedRanks[4];
}
if (sameCards==3 && sameCards2==2)
{
value[0]=7;
value[1]=largeGroupRank;
value[2]=smallGroupRank;
}
if (sameCards==4)
{
value[0]=8;
value[1]=largeGroupRank;
value[2]=orderedRanks[0];
}
if (straight && flush)
{
value[0]=9;
value[1]=0;
}
}
void display()
{
String s;
switch( value[0] )
{
case 1:
s="high card";
break;
case 2:
s="pair of " + Card.rankAsString(value[1]) + "\'s";
break;
case 3:
s="two pair " + Card.rankAsString(value[1]) + " " +
Card.rankAsString(value[2]);
break;
case 4:
s="three of a kind " + Card.rankAsString(value[1]) + "\'s";
break;
case 5:
s=Card.rankAsString(value[1]) + " high straight";
break;
case 6:
s="flush";
break;
case 7:
s="full house " + Card.rankAsString(value[1]) + " over " +
Card.rankAsString(value[2]);
break;
case 8:
s="four of a kind " + Card.rankAsString(value[1]);
break;
case 9:
s="straight flush " + Card.rankAsString(value[1]) + " high";
break;
default:
s="error in Hand.display: value[0] contains invalid value";
}
s = " " + s;
System.out.println(s);
}
void displayAll()
{
for (int x=0; x<5; x++)
System.out.println(cards[x]);
}
int compareTo(Hand that)
{
for (int x=0; x<6; x++)
{
if (this.value[x]>that.value[x])
return 1;
else if (this.value[x]<that.value[x])
return -1;
}
return 0; //if hands are equal
}
}
难道不就是这样吗？不太复杂......你已经编写了程序的所有逻辑（我没有仔细检查，BTW）
public class MainRunner{
public static void main(String[] args){
Deck deck = new Deck();
Hand myHand = new Hand(deck);
myHand.display();
}
}
我很确定你的Card.java中没有添加功能
for (short a=0; a<=3; a++)
{
for (short b=0; b<=12; b++)
{
cards.add( new Card(a,b) ); //here
}
}
那么可能先通过你的课程？