Question

好吧所以无论我输入的第二个猜测是什么，它说它高于60但不是，这可能是一个菜鸟错误，但我不明白为什么？如果有人可以运行此修复错误并解释什么是错误的，这将是一个很大的帮助

package testing;
import java.util.Scanner;
import java.util.Random;
public class testerclass {
    public static void main (String args[]){
        double user1ans, user2ans, total, number, guess1, guess2, count, diff1, diff2;
        Random dice = new Random();
        Scanner user1 = new Scanner(System.in);
        Scanner user2 = new Scanner(System.in);
        System.out.println("Enter player one's guess: ");
        guess1 = user1.nextInt();
        System.out.println("Enter player two's guess: ");
        guess2 = user2.nextInt();
        if (guess1 > 60 || guess2 > 60);
            System.out.println("You can't guess higher than 60!");
            testerclass.main(args);
        for (count=1; count<=10; count++){
            number = dice.nextInt(6+1);
            total = number + number;
            System.out.println(number);
            System.out.println(total);
        user1ans = guess1 - total;
        user2ans = guess2 - total;
        if (user1ans == 0 && user2ans == 0);
            System.out.println("Its a draw!");
            testerclass.main(args);
        if (user1ans == 0);
            System.out.println("Player one wins!!");
            testerclass.main(args);
        if (user2ans == 0);
            System.out.println("Player two wins!!");
            testerclass.main(args);
        if (user1ans == user2ans && user2ans == user1ans);
            System.out.println("Its a draw!!");
            testerclass.main(args);
        diff1 = Math.abs(guess1 - total);
        diff2 = Math.abs(guess2 - total);
        if (diff1 < diff2);
            System.out.println("Player one wins");
            testerclass.main(args);
        if (diff2 < diff1);
            System.out.println("Player two wins");
            testerclass.main(args);
        }
    }

}

Answer 1

（1）不要使用2个扫描仪，一个就够了:)（当你只从一个来源读取输入时 - 一个命令行）

（2）在你的第一个for循环中，第二行应该是＆＃34; total = total + number＆＃34; （？）（3）此外，您需要一个区别，所以在guess1 - total中包裹guess2 - total和Math.abs()：

user1ans = Math.abs(total - guess1);
user2ans = Math.abs(total - guess2)

（4）if内的所有命令/功能都应该在一个正文中（例如＆＃34;好＆＃34; if）：

if(STATEMENT)
{
   // Things to do go here
}

因为否则（就像在你的代码中一样）它将执行代码，无论if语句是真还是假（因为;之后有if

（5）我还建议在新功能中复制整个代码，然后拨打return;而不是testerclass.main(args)。

（我知道，我不应该这样做，但在这里，最后的代码）

import java.util.Random;
import java.util.Scanner;

/**
 * Created by cyphrags on 28.04.15.
 */
public class test
{
    public static void main (String args[]){
        while(true)
        {
            GuessIt();
        }
    }

    public static void GuessIt()
    {
        double user1ans, user2ans, total = 0, number, guess1, guess2, count, diff1, diff2;

        Random dice = new Random();

        Scanner in = new Scanner(System.in);

        System.out.println("Enter player one's guess: ");
        guess1 = in.nextInt();
        System.out.println("Enter player two's guess: ");
        guess2 = in.nextInt();

        if (guess1 > 60 || guess2 > 60) {
            System.out.println("You can't guess higher than 60!");
            return;
        }

        for (count=1; count<=10; count++) {
            number = dice.nextInt(6 + 1);
            total = number + number;
            //System.out.println(number);
            //System.out.println(total);
        }

        System.out.println(total);

        user1ans = Math.abs(guess1 - total);
        user2ans =  Math.abs(guess2 - total);

        if (user1ans == user2ans) {
            System.out.println("Its a draw!");
        } else if (user1ans < user2ans) {
            System.out.println("Player one wins!!");
        } else {
            System.out.println("Player two wins!!");
        }
    }
}

我的代码不起作用，我没有错误，看起来很好

1 个答案: