Question

我试图制作这个简单的游戏。但我不知道这段代码有什么问题。到目前为止，这是我的代码：

import java.util.*;
import java.lang.*;

public class letterguess {
    private static String[] animals = {"snake","dog","cat","bird","whale","ant","wolf","bear","mouse","rabbit","elephant","dragonfly","kangaroo","tiger","komodo","koala","chicken","lion","horse","goat","cow","gorilla","camel","chipmunk","octopus","lobster","phanter","frog","zebra","lizard","baboon","deer","bison","hamster","hyena","shark"}; 
    public static void main(String[] args) {

        String [] true_answer = {"Right", "Awesome", "Cool"};
        String [] false_answer = {"Wrong answer!", "Oops!"};
        String [] word;
        String [] show_word;

        Random string = new Random();

        int i, n=0, start, random=0, z=0, word_size, size;
        char tryagain=0;
        boolean output=true, main=true, error=true;

        System.out.print ("Press 1 to start, 2 to exit: ");
        Scanner input = new Scanner(System.in);
        start = input.nextInt();

        if (start==1){
            main=true;
        }
        else{
            System.exit(0);
        }

        while(main){
            random = string.nextInt(animals.length);       
            word = animals[random].split("");                             
            show_word = animals[random].split("");                    

            for(word_size=0;word_size<animals[random].length();word_size++){
                n=word_size;
            }                                           

            for(i=1;i<animals[random].length();i++){    
                show_word[i] = "_";
            }

            if(n==3){     
                for(i=0;i<1;i++){
                    size = (int) (Math.random()*n);
                    show_word[size]=word[size+1];
                }
            }   
            else if(n==4){
                for(i=0;i<2;i++){
                    size = (int) (Math.random()*n);
                    show_word[size]=word[size+1];          
                }
            }
            else if(n==5){
                for(i=0;i<2;i++){
                    size = (int) (Math.random()*n);
                    show_word[size]=word[size+1];
                }
            }
            else if(n==6){
                for(i=0;i<3;i++){
                    size = (int) (Math.random()*n);
                    show_word[size]=word[size+1];
                }
            }
            else if(n>=7){
                for(i=0;i<4;i++){
                    size = (int) (Math.random()*n);
                    show_word[size]=word[size+1];
                }
            }

            do{ 
                for(i=0;i<animals[random].length();i++){
                    System.out.print(show_word[i]);      
                }

                try {
                    Thread.sleep(1000);
                } catch (InterruptedException ie) {
                }
                System.out.print("\t 1");
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException ie) {
                }
                System.out.print(" 2");
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException ie) {
                }
                System.out.print(" 3");
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException ie) {
                }
                System.out.print(" 4");
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException ie) {
                }
                System.out.print(" 5 ");

                System.out.print("\n Answer: ");
                Scanner input2 = new Scanner(System.in);         
                String word3 = input2.nextLine();          


                if(word3.equals(animals[random])){ 
                    int True = (int) (Math.random()*2+1);
                    System.out.println(" ==> " +true_answer[True]);
                    output=false;
                }
                else{
                    int False = (int) (Math.random()*2+1);
                    System.out.println(" ==> "+false_answer[False]+"\n");
                    output=false;
                }
            }while(output);

            System.out.print("\n Try Again (Y/N) : ");
            Scanner input3= new Scanner (System.in);
            tryagain = input3.next().toLowerCase().charAt(0);
            if(tryagain=='y') 
                main=true; 
            else if(tryagain=='n')  
                main = false;

            else
                while(error){
                    System.out.print ("\n Wrong Input. Please input Y or N: ");
                    Scanner input4= new Scanner (System.in);
                    String next=input4.nextLine();
                    if(next.equals("Y")||next.equals("y"))
                        break;
                    else if(next.equals("N")||next.equals("n")){
                        error=false;
                        main=false;
                    }
                    else
                        continue;     
                }

        }  
        System.out.print ("\t\t\t(\tGAME OVER\t)");    

    }
}

问题是，输出不是我预期的。我希望大马 ho_s _ 或大象 _l_ph ___ ，但它显示的内容类似于 or_e _ > 马和 ee ___ nt _ elephant 。

有人可以帮我解决这个问题吗？我已经尝试过任何我知道但仍无法解决的问题。我很抱歉，谢谢你。

Answer 1

虽然很高兴能够运行所有东西，但是将来，你应该考虑专注于问题 - 代码的一部分，这是间距的显示，它只有3行，更容易调试。

        for(i=1;i<animals[random].length();i++){    //<-- 
            show_word[i] = "_";
        }

这个for循环是个问题。 i应该从0开始。

        for(i=0;i<animals[random].length();i++){    //<-- 
            show_word[i] = "_";
        }

修改输出：

horse
___s_    1 2 3 4 5 
 Answer: horse

修改的

以下是调整问题的错误：

        for (word_size = 0; word_size < animals[random].length(); word_size++) {
            n = word_size;
        }

您尝试将n =设置为字大小，但您提供的逻辑不准确。你实际上得到了word_size - 1

因此，使用3个字母的单词，您将得到2，这意味着不会替换任何字母。

您可以将所有这些替换为：

n = animals[random].length(); //returns 3 for cat

Java信猜测程序

1 个答案: