如何找到仅包含/包含给定char序列的单词 [英] How do I find words that only contain/consist of a given char sequence

问题描述

我希望遍历字典文件并查找仅包含给定字符的字词

I wish to loop through a dictionary file and find words that contain only the given characters

示例dgo

期望的结果：狗，上帝

不包含（在其中）给定字符的单词

NOT words that contain (within them) the given characters

I我正在使用以下代码：

I am working with the following code:

            while((dictionaryWord = br_.readLine()) != null) 
            {   

                    if(dictionaryWord.contains(getWord()))
                        System.out.println(dictionaryWord);

            }

但是这给了我包含给定字符的所有单词 - - 不希望

But this gives me all words which contain the given characters -- NOT DESIRED

推荐答案

没有正则表达式：

public static boolean sameCharacters(String left, String right) {
    return sortCharacters(left).equals(sortCharacters(right));
}

private static String sortCharacters(String s) {
    final char[] chars = s.toCharArray();
    Arrays.sort(chars);
    return String.valueOf(chars);
}

更新：性能更佳的版本（感谢 user384706 ）：

UPDATE: better performing version (thanks to user384706):

public static boolean sameCharacters(String left, String right) {
    return Arrays.equals(sortCharacters(left), sortCharacters(right));
}

private static char[] sortCharacters(String s) {
    final char[] chars = s.toCharArray();
    Arrays.sort(chars);
    return chars;
}

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