java - 如何让我的 Java 'if' 语句起作用？

Question

我对 Java 学习还很陌生，目前我正在开发一个程序，该程序可以让我根据分配给我们的简单统计数据和一个充当骰子功能的随机数与计算机进行战斗。我认识到我的代码可能存在许多其他问题，但我试图解决的主要问题是第 84 行的“标记上的语法错误，删除这些标记”和第 77 行的“语法错误，插入“}”以完成语句”。

我不明白问题出在哪里。我究竟做错了什么？这两个问题都列在我的代码底部附近相应行旁边的注释中。

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

public class Fight {

public static void main(String[] args) {
    Scanner keyboard = new Scanner(System.in);

    System.out.println("Enter your name");
        String you = keyboard.next();
        int youWounds = 1;
        int youTough = 4;
        int youAttack = 1;
        int youWS = 4;
        int youAS = 3;

        String Comp = "Bad Guy";
        int compWounds = 1;
        int compTough = 4;
        int compAttack = 1;
        int compWS = 4;
        int compAS = 3;

    System.out.println(you + ", do you want to FIGHT?!?!?");
    System.out.println("Yes / No?");

    String inputString = keyboard.next();       

    if (inputString.equalsIgnoreCase("Yes")) {
        System.out.println("FIGHT!!!!");
        while (youWounds > 0 && compWounds > 0) {

            int youRan = new Random().nextInt(6)+1; // this is where you roll to hit 
            System.out.println(you + " rolls " + youRan +" to hit");

            if (youRan >= 7-youWS) { // this is the logic for roll to hit 
                System.out.println(you +" hit");

                int youRanTW = new Random().nextInt(6)+1; // this is where you check to see if your hit wounds 
                System.out.println(you + " rolls " + youRanTW +" to wound");
                if (youRanTW > compTough) { // this is the logic for roll to wound
                    System.out.println(you+" wounds"+Comp);
                    compWounds = compWounds - 1; // this is where comp loses a wound
                    if (compWounds <= 0) { // this is the logic for wound loss
                        System.out.println(Comp+" dies!!!");
                    } else {
                        System.out.println("But, "+Comp+" fights on!");
                    }
                } else {
                    System.out.println(you=" does not wound");
                }
            } else { 
                System.out.println(you +" misses");
            }

            int compRan = new Random().nextInt(6)+1;
            System.out.println(Comp+" rolls " + compRan + " to hit");

            if (compRan >= 7-compWS) { // this is the logic for roll to hit 
                System.out.println(Comp +" hit");                       
                int compRanTW = new Random().nextInt(6)+1; // this is where you check to see if your hit wounds 
                System.out.println(Comp + " rolls " + compRanTW +" to wound");
                if (compRanTW > youTough) { // this is the logic for roll to wound
                    System.out.println(Comp+" wounds"+you);
                    youWounds = youWounds - 1; // this is where you loses a wound
                    if (youWounds <= 0) { // this is the logic for wound loss
                        System.out.println(you+" dies!!!");
                    } else {
                        System.out.println("But, "+you+" fights on!");
                    }
                } else {
                    System.out.println(Comp=" does not wound");
                }                   
            } else {
                System.out.println(Comp +" misses");
            }
        } else { // this is wher I get "Syntax error, insert "}" to complete Statement". The "}" is underlined in red on my screen
            if (youWounds <=0){
                System.out.println(Comp+" WINS!!!!");
            } else {
                System.out.println(you+" WINS!!!!");
            }
        }
    } else { // this is where i get "Syntax error on tokens, delete these tokens". it wants me to delete "} else".
        System.out.println(you + " you are a looser!!!!!!!!");
    }
    keyboard.close();
    }
}

Answer 1

您的程序流程存在一些问题，但当前的问题是您尝试在 while 循环上使用 else。这是不可能或没有必要的。

while循环将继续，直到满足定义的条件。一旦发生这种情况，while 循环就会结束并执行下一行代码。

因此，从 while 循环的结束中删除 else {。然后您就可以评估结果。

这是更正后的代码，其中有几条注释来显示在哪里删除内容:

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

public class Fight {

    public static void main(String[] args) {
        Scanner keyboard = new Scanner(System.in);

        System.out.println("Enter your name");
        String you = keyboard.next();
        int youWounds = 1;
        int youTough = 4;
        int youAttack = 1;
        int youWS = 4;
        int youAS = 3;

        String Comp = "Bad Guy";
        int compWounds = 1;
        int compTough = 4;
        int compAttack = 1;
        int compWS = 4;
        int compAS = 3;

        System.out.println(you + ", do you want to FIGHT?!?!?");
        System.out.println("Yes / No?");

        String inputString = keyboard.next();

        if (inputString.equalsIgnoreCase("Yes")) {
            System.out.println("FIGHT!!!!");
            while (youWounds > 0 && compWounds > 0) {

                int youRan = new Random().nextInt(6) + 1; // this is where you roll to hit
                System.out.println(you + " rolls " + youRan + " to hit");

                if (youRan >= 7 - youWS) { // this is the logic for roll to hit
                    System.out.println(you + " hit");

                    int youRanTW = new Random().nextInt(6) + 1; // this is where you check to see if your hit wounds
                    System.out.println(you + " rolls " + youRanTW + " to wound");
                    if (youRanTW > compTough) { // this is the logic for roll to wound
                        System.out.println(you + " wounds" + Comp);
                        compWounds = compWounds - 1; // this is where comp loses a wound
                        if (compWounds <= 0) { // this is the logic for wound loss
                            System.out.println(Comp + " dies!!!");
                        } else {
                            System.out.println("But, " + Comp + " fights on!");
                        }
                    } else {
                        System.out.println(you = " does not wound");
                    }
                } else {
                    System.out.println(you + " misses");
                }

                int compRan = new Random().nextInt(6) + 1;
                System.out.println(Comp + " rolls " + compRan + " to hit");

                if (compRan >= 7 - compWS) { // this is the logic for roll to hit
                    System.out.println(Comp + " hit");
                    int compRanTW = new Random().nextInt(6) + 1; // this is where you check to see if your hit wounds
                    System.out.println(Comp + " rolls " + compRanTW + " to wound");
                    if (compRanTW > youTough) { // this is the logic for roll to wound
                        System.out.println(Comp + " wounds" + you);
                        youWounds = youWounds - 1; // this is where you loses a wound
                        if (youWounds <= 0) { // this is the logic for wound loss
                            System.out.println(you + " dies!!!");
                        } else {
                            System.out.println("But, " + you + " fights on!");
                        }
                    } else {
                        System.out.println(Comp = " does not wound");
                    }
                } else {
                    System.out.println(Comp + " misses");
                }
            }  // REMOVE THE ELSE AND BRACKET
            if (youWounds <= 0) {
                System.out.println(Comp + " WINS!!!!");
            } else {
                System.out.println(you + " WINS!!!!");
            }
            // REMOVE THIS BRACKET
        } else { // this is where i get "Syntax error on tokens, delete these tokens". it wants me to delete "} else".
            System.out.println(you + " you are a looser!!!!!!!!");
        }
        keyboard.close();
    }
}