如何为Java Card类创建一个remove方法

How do can create a remove method for the Java Card Class

卡类

公共类卡{

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private int value;
private String rank;
private String suit;

public Card(String s, String r, int v) { suit=s;rank=r;value=v; }

public int getValue() {return value;}
public String getRank() {return rank;}
public String getSuit() {return suit;}

public boolean matches(Card othercard) {
return othercard.getValue()==(this.value)
&&othercard.getRank().equals(this.rank)
&&othercard.getSuit().equals(this.suit);
}

@Override
public String toString() {
return"[" + suit +","+ rank +"," + value +"]";
}

}

使用remove方法的deck类。
我修改了显示方法，不显示空卡，并使大小返回所有卡，排除空卡。删除也是固定的。谢谢

import java.util.ArrayList;

公共课Deck01 {

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private Card[] cards;
private int size;

public Deck01(){
cards = new Card[52];
int size = 0;
}
public void add(String suit, String rank, int value){
Card temp = new Card(suit,rank,value);
cards[size] = temp;
size++;
}

public void remove(String suit, String rank, int value){
Card temp = new Card(suit,rank,value);
for (int s = 0;s<size;s++) {
if ((temp.getValue()) == (-1)
&&temp.getRank()==(null)
&&temp.getSuit()==(null)) {
s++;
}
if (temp.getValue()==(cards[s].getValue())
&&temp.getRank().equals(cards[s].getRank())
&&temp.getSuit().equals(cards[s].getSuit())) {
cards[s]= new Card(null,null,-1);

}
}

}

public void display() {
int q=-1;
for (int k = 0;k<size;k++) {
if (cards[k].getValue() != (q))
System.out.println(cards[k]);
}
}

public int getSize(){
int nullsize=0;
for (int i = 0;i<size;i++) {
if ((cards[i].getSuit())==(null))
nullsize++;
}

return size-nullsize;
}

public boolean isEmpty(){return size==0;}

@Override
public String toString() {
return"Deck01 [cards=" + cards +", size=" + size +"]";
}

}

主要班级......

import java.util。*;

公共类DeckTester01 {

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public static void main(String[] args) {
Deck01 deck =new Deck01();

System.out.println(deck.getSize());
System.out.println(deck.isEmpty());
deck.add("Clovers","Jack",11);
deck.add("Diamonds","King",13);
deck.add("Hearts","Queen",12);
deck.add("Spades","9",9);
deck.add("Clovers","7",7);
deck.add("Diamonds","Ace",1);
deck.add("Hearts","Jack",11);
deck.add("Spades","Ace",1);
deck.add("Clovers","3",3);
deck.add("Diamonds","5",5);

deck.display();
System.out.println(deck.isEmpty());
System.out.println(deck.getSize());

deck.remove("Hearts","Jack",11);
deck.remove("Diamond","King",13);
deck.remove("Spades","Ace",1);
deck.display();
System.out.println(deck.getSize());

}

}

相关讨论

您可以尝试使用LinkedList来实现此目的。这是我的代码有效。你在删除功能中犯了错误。您应该按索引删除不是大小。那么你甚至不需要大小变量。

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import java.util.LinkedList;
import java.util.List;

public class Deck01 {
private List<Card> cards;

public Deck01(){
cards = new LinkedList<>();
}
public void add(String suit, String rank, int value){
Card temp = new Card(suit,rank,value);
cards.add(temp);
}

public void remove(String suit, String rank, int value){
Card temp = new Card(suit,rank,value);
for (int s = 0;s<cards.size();s++) {
Card tempCard = cards.get(s);
if (temp.getValue()==(tempCard.getValue())
&&temp.getRank().equals(tempCard.getRank())
&&temp.getSuit().equals(tempCard.getSuit())) {
cards.remove(tempCard);
break;
}
}
}

public void display() {
System.out.println(cards);
}

public int getSize(){return cards.size();}

public boolean isEmpty(){ return cards.isEmpty(); }

@Override
public String toString() {
return"Deck01 [cards=" + cards +", size=" + cards.size() +"]";
}

public static void main(String[] args) {
Deck01 deck =new Deck01();

System.out.println(deck.getSize());
System.out.println(deck.isEmpty());
deck.add("Clovers","Jack",11);
deck.add("Diamonds","King",13);
deck.add("Hearts","Queen",12);
deck.add("Spades","9",9);
deck.add("Clovers","7",7);
deck.add("Diamonds","Ace",1);
deck.add("Hearts","Jack",11);
deck.add("Spades","Ace",1);
deck.add("Clovers","3",3);
deck.add("Diamonds","5",5);

deck.display();
System.out.println(deck.isEmpty());
System.out.println(deck.getSize());

deck.remove("Diamonds","5",5);
deck.remove("Spades","Ace",1);
deck.display();
System.out.println(deck.getSize());
}
}