Question

我正在开发一个单词scramble android app ..所以基本上我有一个字符串数组的单词。我需要显示字符串而不重复。这是我到目前为止所尝试的：

// shuffle algorithm
private String shuffleWord(String word){

    List<String>  letters = Arrays.asList(word.split(""));
    Collections.shuffle(letters);
    String Shuffled="";
    for (String letter : letters ){
        Shuffled += letter;
    }
    return Shuffled;
}

private void  newGame(){
    // get random word from dictionary
    currentWord= dictionary[r.nextInt(dictionary.length)];

    // show the shuffled word
    tv_word.setText(shuffleWord(currentWord));

    // clear the textfield
    et_guess.setText("");

    // switch buttons
    b_new.setEnabled(false);
    b_check.setEnabled(true);
}

Answer 1

您需要使用不同的种子来每次获得不同的伪随机数，这可用于随机化您的单词。像这样：

Random random = new Random(System.currentTimeMillis());
currentWord= dictionary[random.nextInt(dictionary.length)];

请阅读https://developer.android.com/reference/java/util/Random.html#Random(long)

Word加扰应用Android

1 个答案: