我目前正忙于一項(xiàng)小型大學(xué)作業(yè)，并且在使用我實(shí)現(xiàn)的字典類的 contains() 方法時(shí)遇到了一些問(wèn)題 - 該方法總是返回 false。這個(gè)類看起來(lái)像這樣：public class LocalDictionary { private ArrayList<String> wordsSet; public LocalDictionary() throws IOException { String wordListContents = new String(Files.readAllBytes(Paths.get("words.txt"))); wordsSet = new ArrayList<>(); String[] words = wordListContents.split("\n"); for (int i = 0; i < words.length; i++) { wordsSet.add(words[i].toLowerCase()); } } public boolean contains(String word) { return wordsSet.contains(word.toLowerCase()); }}字典從中獲取單詞的“words.txt”文件可在https://raw.githubusercontent.com/dwyl/english-words/master/words_alpha.txt獲得，但這里是它的外觀片段：zinkedzinkenitezinkyzinkiferouszinkifyzinkifiedzinkifieszinkifyingzinniazinniaszinnwalditezinoberzinsangzinzarzinziberaceae我已經(jīng)確?！皐ords.txt”中的單詞包含在“wordsSet”中，但無(wú)法弄清楚為什么 contains 方法對(duì)于似乎在 ArrayList 中的單詞返回 false。非常感謝任何幫助。
2 回答
喵喔喔
TA貢獻(xiàn)1735條經(jīng)驗(yàn) 獲得超5個(gè)贊
嘗試BufferedReader，我嘗試并為我工作（我刪除了一些無(wú)用的行）。在您的使用中，您從文件中讀取所有字節(jié)，會(huì)有額外的字節(jié)。
public class LocalDictionary {
private ArrayList<String> wordsSet = new ArrayList<>();
public LocalDictionary() throws Exception {
//dont forget to absolute path to here. click righ click to file and copy path
File file = new File("C:\\Users\\higuys\\IdeaProjects\\try\\src\\words.txt");
BufferedReader br = new BufferedReader(new FileReader(file));
String line;
while ((line = br.readLine()) != null)
//trim and tolowercase and add to list.
wordsSet.add(line.trim().toLowerCase());
}
public boolean contains(String word) {
return wordsSet.contains(word.toLowerCase());
}
}
汪汪一只貓
TA貢獻(xiàn)1898條經(jīng)驗(yàn) 獲得超8個(gè)贊
嘗試BufferedReader，我嘗試并為我工作（我刪除了一些無(wú)用的行）。在您的使用中，您從文件中讀取所有字節(jié)，會(huì)有額外的字節(jié)。
public class LocalDictionary {
private ArrayList<String> wordsSet = new ArrayList<>();
public LocalDictionary() throws Exception {
//dont forget to absolute path to here. click righ click to file and copy path
File file = new File("C:\\Users\\higuys\\IdeaProjects\\try\\src\\words.txt");
BufferedReader br = new BufferedReader(new FileReader(file));
String line;
while ((line = br.readLine()) != null)
//trim and tolowercase and add to list.
wordsSet.add(line.trim().toLowerCase());
}
public boolean contains(String word) {
return wordsSet.contains(word.toLowerCase());
}
}
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