Question

public class Dice 
{
    int player;
    int computer;

    public static void main (String[]args)
    {

        player = 1 + (int)((Math.random()*7));
        computer = 1 + (int)((Math.random()*7));
        diceRoll();
        System.out.println("You rolled a " + player);
        System.out.println("Computer rolled a " + computer);
        System.out.println("And the winner is" + winner);   

    }

    public static void diceRoll()
    {
        boolean winner = player > computer;

        if (winner)
            System.out.println("You won!");

        if (!winner)
            System.out.println("You lost!");



    }

对不起......这可能是个愚蠢的问题，但我是初学者我应该创建一个骰子滚动游戏。规则很简单，如果计算机的数量大于玩家，则计算机获胜，如果玩家的数量较大，则玩家获胜。我必须使用If语句来创建它。但是我得到的错误是＆＃34;非静态变量不能从静态上下文中引用＆＃34;而且我得到的错误是＆＃34;找不到符号赢家＆＃34; 我不知道该怎么做非常感谢你的帮助..

Answer 1

这里有几个问题，第一个播放器，计算机是非静态变量，你想用静态方法（main）访问它们，所以让它们保持静态。第二个在diceRoll（）方法之外声明获胜者，这样你就可以在main中使用它来制作那个静态。第三，让胜利者成为胜利者名字。

public class Dice {
    static int player;
    static int computer;
    static String winner;

    public static void main(String[] args) {

        player = 1 + (int) ((Math.random() * 7));
        computer = 1 + (int) ((Math.random() * 7));
        diceRoll();
        System.out.println("You rolled a " + player);
        System.out.println("Computer rolled a " + computer);
        System.out.println("And the winner is" + winner);

    }

    public static void diceRoll() {

        if(player > computer){
            System.out.println("You won!");
            winner = "Player";
        }else{
            System.out.println("You lost!");
            winner = "Computer";
        }
    }
}

Answer 2

你不能在main函数中引用类的静态变量。
＆＃39;胜者＆＃39;变量是diceroll函数的本地变量，无法在main中访问。

修改上述两点的代码，它应该有效。公共课骰子 { static int player; static int computer;

    public static void main (String[]args)
    {   


        player = 1 + (int)((Math.random()*7));
        computer = 1 + (int)((Math.random()*7));
        boolean winner= diceRoll();
        System.out.println("You rolled a " + player);
        System.out.println("Computer rolled a " + computer);
        System.out.println("And the winner is" + winner);   

    }

    public static boolean diceRoll()
    {
      boolean winner = player > computer;

        if (winner)
            System.out.println("You won!");

        if (!winner)
            System.out.println("You lost!");

    return winner;

    }
}

模拟掷骰子游戏，非常初学者

2 个答案: