Java 开关箱卡类
主要类别:Java 开关箱卡类,java,switch-statement,Java,Switch Statement,主要类别: public class Card { private String cardShort; private String cardClas; private String cardType; public Card(String cardClas, String cardType) { this.cardType = cardType; this.cardClas = cardClas; } public void cardSelector() { switc
public class Card
{
private String cardShort;
private String cardClas;
private String cardType;
public Card(String cardClas, String cardType)
{
this.cardType = cardType;
this.cardClas = cardClas;
}
public void cardSelector()
{
switch(cardClas.toUpperCase())
{
case "J" : cardClas = "Jack";
break;
case "K" : cardClas = "King";
break;
case "Q" : cardClas = "Queen";
break;
case "A" : cardClas = "Ace";
break;
case "2" : cardClas = "Two";
break;
case "3" : cardClas = "Three";
break;
case "4" : cardClas = "Four";
break;
case "5" : cardClas = "Five";
break;
case "6" : cardClas = "Six";
break;
case "7" : cardClas = "Seven";
break;
case "8" : cardClas = "Eight";
break;
case "9" : cardClas = "Nine";
break;
case "10" : cardClas = "Ten";
break;
}
switch(cardType.toUpperCase())
{
case "S" : cardClas = "Spades";
break;
case "C" : cardClas = "Clubs";
break;
case "H" : cardClas = "Hearts";
break;
case "D" : cardClas = "Diamonds";
break;
}
}
public String getClasses()
{
return cardType;
}
public String getType()
{
return cardClas;
}
public String toString()
{
String theory = getClasses() + " of " + getType();
return theory;
}
}
测试人员:
import java.util.Scanner;
public class CardTester
{
public static void main(String[] args)
{
Scanner sc = new Scanner(System.in);
System.out.println("Enter card: ");
String shortHand = sc.next();
if(shortHand.length() == 2)
{
Card c = new Card(shortHand.substring(0,1),shortHand.substring(1,2) );
c.cardSelector();
System.out.println(c.toString());
} else if(shortHand.length() == 3)
{
Card c = new Card(shortHand.substring(0,2), shortHand.substring(2,3));
c.cardSelector();
System.out.println(c.toString());
}
}
}
控制台:
“输入卡:
作为
黑桃
"
应该输出“黑桃王牌”。尝试了一系列不同的修复,不确定是什么导致了问题
第一次使用开关箱,可能需要一些帮助。。。谢谢 您的两个switch语句都在设置
cardClas
。您需要其中一个来设置cardType
另外,你的两个getter非常混乱。你似乎在某种程度上交换了名字;因此,您有
getClasses
返回cardType
和getType
返回cardclass
。您可能需要修复此问题。首先,我希望您使用的是Java 7。如果不是(或者如果您想简化它),您可以在switch语句中使用char而不是String。同时在两个switch语句中设置cardClas。另外,您的方法getClasses返回cardType,getCardType返回cardClas那么,您是否在调试器中仔细检查了代码?这正是您希望使用类型安全枚举的场景。他们本可以避免这一错误。