java - 扫描仪未返回正确结果？

Question

我目前正在制作一款 Hi-Lo 纸牌游戏作为编程作业。我的代码用于检测用户是否想猜测更高、更低或等于。

DeckOfCards deck = new DeckOfCards(); 
PlayingCard card = deck.deal(); 
PlayingCard next = deck.deal(); 
System.out.println("Welcome to the High Low Card Game.\n" +
                   "You're current card is: "+card.toPictograph() + 
                   ". Will the Next card be higher/lower/equal "+
                   "to the current card?\nType Quit to exit.");
Scanner inputScanner = new Scanner(System.in);
if(inputScanner.hasNext("higher")){

        System.out.println("Congradulations you won");
        wins++;
}
 else if (inputScanner.hasNext("lower"))
 {
     System.out.println("You suck");
 }
 else if (inputScanner.hasNext("equal"))
 {
     System.out.println("You suck");
 }

如果我输入“更高”、“更低”或“等于”(不带“”)，程序将不会执行任何操作。有任何想法吗？谢谢

Answer 1

您最好将插入的标记保存到 String 变量中，然后将其与您想要的任何内容进行比较。

.next() 只会保存您的第一个单词。如果要保存整行(包括空格)，请使用 .nextLine()

DeckOfCards deck = new DeckOfCards(); 
PlayingCard card = deck.deal(); 
PlayingCard next = deck.deal(); 
System.out.println("Welcome to the High Low Card Game.\nYou're current card is: "+card.toPictograph()+". Will the Next card be higher/lower/equal to the current card?\nType Quit to exit.");
Scanner inputScanner = new Scanner(System.in);
String s = inputScanner.next();
if(s.equalsIgnoreCase("higher"))
{
    System.out.println("Congradulations you won");
    wins++;
}
else if (s.equalsIgnoreCase("lower"))
{
    System.out.println("You suck");
}
else if (s.equalsIgnoreCase("equal"))
{
    System.out.println("You suck");
}