如何把在多个索引字符 [英] how to put char at multiple indices

问题描述

我要考虑一个12字母的单词和计算机有猜词。我的信件Z.一个ArrayList我让电脑随机挑选一个信我已经把信的索引，如果这封信是在单词。但是如果信一直走在索引2和8 我怎么能这样做呢？
 一个暗示是非常有益的。

i have to think a 12 letter word and the computer has to guess the word. i have an arraylist of letters A to Z. i let the computer randomly pick a letter and i have to put the letter at an index if the letter is in the word. but what if the letter has to go at index 2 and 8. how could i do that? a hint would be very helpfull.

!!如果计算机猜测的字字母i设置相应的指数在那封信我例如2型

!! if the computer guesses a letter in the word i set that letter at the corresponding index i type 2 for example

知道对不对，它把信只在一个索引然后删除信（因为它可以客串那封信只有一次。我使用的是12字母的单词。

right know it puts the letter only at one index then removes the letter(because it can gues that letter only one time. i'm using a 12 letter word.

            private Scanner sc;
            private ArrayList<Character> letters;
            private int answer;
            private char randL;
            private char ch;
            private int wrongG = 0; 
            private int wrongA = 0; 
            private int randNum;
            private StringBuilder hiddenW = new StringBuilder("............");
            private boolean match;

  public void gameComputer() {
    for (int i = 0; i < 26; i++) { 
        ch = (char) ('A' + i);
        letters.add(ch);
    }

    while (wrongA < 10) {
        randNum = (int) (Math.random() * letters.size());
        randL = letters.get(randNum);
        System.out.println("De computer raadt een " + randL
                + ". Op welke plaats(en) staat die letter?");
        answer = sc.nextInt();

        for (int ii = 0; ii < hiddenW.length(); ii++) {
            if (answer > -1 && answer < 12) {
                hiddenW.setCharAt(answer, randL);
                match = true;

            }

        }

        if (answer == 100) {
            match = false;
        }
        if (match) {
            System.out.println(hiddenW);
            System.out.println("Aantal fouten: " + wrongA);
        }
        if (!match) {
            wrongA = wrongA + 1;
            System.out.println("Aantal fouten: " + wrongA);
        }
        if (wrongA == 10) {
            System.out.println("you couldn't guess the word");
            break;
        }
        letters.remove(randNum);
    }
}

输出：

 the computer guessed O. Op welke plaats(en) staat die letter?
 2 8     
..O.........
Aantal fouten: 0
the computer guessed  I. Op welke plaats(en) staat die letter?
..O.....I...
Aantal fouten: 0
the computer guessed  K. Op welke plaats(en) staat die letter?

我想将在多个指标的信
就像如果计算机猜到了 A
我想键入2和8，设置字母A 在指数2和8

推荐答案

如果您希望能够给几个指标，而不是一个，可以使用 sc.nextLine（）而不是 sc.nextInt（）键，（如果你鄙视逗号或别的东西），写用逗号分隔的指标 - 如2,8。然后，你可以通过使用读取整个字符串的charAt ，并通过整个字符串或其他任何你喜欢的方式进行迭代。

If you want to be able to give several indices instead of one, use sc.nextLine() instead of sc.nextInt() and write the indices separated by a comma (or something else if you despise commas) - for example "2,8". Then you can read the whole string by using charAt and iterating through the whole string or any other way you like.

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