我正在尝试编写一个密码游戏。用户必须猜测报价。我以下划线的形式打印报价。例如，如果引用是＆＃34;是或不是＆＃34;我将打印＆＃34; _ _ _ _ _ _ _ _ _ _ ＆＃34;。用户将输入要放置角色的角色和位置。例如，如果玩家输入了字母＆＃34; r＆＃34;在位置0，我们将得到以下输出＆＃34; r _ _ _ _ _ _ r _ _＆＃34;。 我的问题是，每次我要求用户猜一个字母时，都不显示播放器的先前猜测。我的代码如下：
public class Cryptogram
{ //get letter and delete letter methods?
//Where do we generate the crypto mapping
String phrase;
Integer freq;
// ArrayList<Character> guess;
//char guess[];
/**
* read the file
* return a random line
* @throws IOException
* */
public Cryptogram ()
{
try
{
phrase = readCryptogram();
//guess = new ArrayList<Character>();
//char guess[] = new char [phrase.length()];
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
freq = 0;
}
public String readCryptogram() throws IOException
{
FileInputStream fs= new FileInputStream("QUOTES.txt");
BufferedReader br = new BufferedReader(new InputStreamReader(fs));
ArrayList<String> array = new ArrayList<>();
String line;
while((line = br.readLine()) != null)
array.add(line);
Random rand = new Random();
int randomIndex = rand.nextInt(array.size());
//int smth = array.size();
//guess = new ArrayList<Character>(array.size());
return array.get(randomIndex);
}
public void updateUnderscores(int posit, char lettr)
{
char guess[] = new char [phrase.length()];
// for (int k=0; k<phrase.length(); k++)
// {
// guess[k] = 0;
// }
//guess = new char [phrase.length()];
//System.out.print(guess.length);
char quote[] = phrase.toCharArray();
for (int c = 0; c<quote.length; c++)
{
quote[c] = phrase.charAt(c);
}
char let = quote[posit];
for (int i=0; i<quote.length; i++)
{
if (Character.isAlphabetic(quote[i]))
{
if (let==quote[i])
{
//System.out.print(lettr);
guess[i] = lettr;
//guess.add(i, lettr);
//System.out.println(guess);
}
else System.out.print("_ ");
//guess[i] = ' _';
}
else System.out.print(" ");
}
//copyGuessedCr(guess);
/*System.out.print("Guess arr: " );
for (int j=0; j<phrase.length(); j++)
{
System.out.print(guess[j]);
}*/
}
/*public char[] copyGuessedCr(char guess[])
{
char gs[] = new char [phrase.length()];
System.out.print("Guess arr: " );
for (int j=0; j<phrase.length(); j++)
{
if (guess[j]!=0)
gs[j] = guess[j];
}
return gs;
}
public void printGuess()
{
char g[] = ;
System.out.print("Guess arr: " );
for (int j=0; j<phrase.length(); j++)
{
System.out.print();
}
}*/
public String getCryptogram()
{
return phrase;
}
public void getFrequencies()
{
String qt = phrase;
int cols = qt.length();
int rows = 2;
Object [][] arr = new Object [cols][rows];
qt=qt.toLowerCase(); //converting the string into lowercase
int l=qt.length(); //finding the length of the string
char ch;
/* Counting frequency of alphabets begins below */
int count=0;
for(char i='a'; i<='z'; i++)
{
count = 0;
for(int j=0; j<l; j++)
{
ch=qt.charAt(j); //extracting characters of the string one by one
if(ch==i) //first checking the whole string for 'a', then 'b' and so on
count++; //increasing count of those aplhabets which are present in the string
//System.out.println(i+"\t\t"+count);
}
// if(count!=0)//printing only those alphabets whose count is not '0'
// {
// //System.out.println(i+"\t\t"+count);
//
// }
for (int k=0; k<l; k++)
{
if (qt.charAt(k) == i)
{
arr[k][1] = count;
}
}
}
for (int i=0; i<cols; i++)
{
if (Character.isAlphabetic(qt.charAt(i)))
{
arr[i][1] = "_ ";
}
else arr[i][1] = " ";
}
for (int i=0; i<rows; i++)
{
for (int j=0; j<cols; j++)
{
System.out.print(arr[j][i]);
}
System.out.println("\n");
}
}
public class Main
{
public static void main(String[] args) throws IOException
{
Game gObj = new Game();
players pl = new players();
Cryptogram crObj = new Cryptogram();
Scanner scanner = new Scanner(System.in);
System.out.println("Type your name: " + "\n");
String name = scanner.next();
pl.findPlayer(name);
System.out.println("Do you want to play? Y / N ");
char ans = scanner.next().charAt(0);
if (ans == 'Y')
{
System.out.println("Cryptogram is out: "+crObj.getCryptogram());
crObj.getFrequencies();
}
char letter;
int position = -2;
while (position != -1)
{
System.out.println("\n" + "Choose a position to fill a letter in: ");
position = scanner.nextInt();
System.out.println("Position " + position);
System.out.println("\n" + "Choose a letter: ");
letter = scanner.next().charAt(0);
crObj.updateUnderscores(position, letter);
}
scanner.close();
}
}
答案 0 :(得分：0)
当我做一个刽子手游戏时，我遇到了类似的问题。
我解决它的方法是使用一个单独的列表，其长度由所选单词或您的案例短语决定。然后列表中只填充“_”并在每次猜测后显示。
当用户猜测时，它会通过一个循环检查它，对着char数组中单词的每个字符进行检查。找到匹配后，修改了列表，并根据循环的迭代次数将“_”替换为正确的字符。
我无法记住我使用的确切代码，我目前正在工作但是当我回到家时会检查和修改。
我还将之前错误的猜测存储在每次猜测后添加的列表中。
希望这有帮助，我仍然有很多在编程中学习，所以如果解释有点令人困惑或者我使用了错误的短语，我会道歉。