Question

我要做的是从一个包含500,000个英文单词的文本文件中读取并将其存储到HashSet中以达到性能目的。然后我想返回一个包含限定元素的HashSet，例如，5个字母的单词，6个字母的单词等。

这是我的代码到目前为止，我不知道如何做到这一点。我感谢您的解决方案！

 private static HashSet<String> readPuzzleFile(int wordLength) {
        HashSet<String> unProcessedPuzzle = new HashSet<String>();
        try (Scanner file = new Scanner(new File(PATHTOPUZZLE))) {
            while (file.hasNextLine()) {
                unProcessedPuzzle.add(file.nextLine());
            }
        } catch (FileNotFoundException e) {
            System.out.println("No Puzzle File Found!");
            return null;
        }
        HashSet<String> puzzle = new HashSet<String>();
        Iterator iterator = unProcessedPuzzle.iterator();
        for (String word : unProcessedPuzzle){
            puzzle.addAll(word);
        }
       }

Answer 1

private static HashSet<String> readPuzzleFile(int wordLength) {
        HashSet<String> unProcessedPuzzle = new HashSet<String>();
        try (Scanner file = new Scanner(new File(PATHTOPUZZLE))) {
            while (file.hasNextLine()) {
                unProcessedPuzzle.add(file.nextLine());
            }
        } catch (FileNotFoundException e) {
            System.out.println("No Puzzle File Found!");
            return null;
        }
        HashSet<String> puzzle = new HashSet<String>();
        Iterator iterator = unProcessedPuzzle.iterator();
        for (String word : unProcessedPuzzle){
            puzzle.add(word); //........addAll -> add.........
        }
        return puzzle;//........return puzzle.........
       }

如何遍历HashSet并返回带有限定元素的集合？

1 个答案: