显示当前（或指定）目录中所有.txt文件的名称 [英] Display the names of all .txt documents within the current (or specified) directory

问题描述

所以我有以下代码（从教程中无耻地复制，所以我可以得到基本的排序），它要求玩家加载他们的游戏（基于文本的冒险游戏）
但我需要一种在目录中显示所有保存的游戏的方法。我可以得到当前的目录没有后顾之忧。这是我的代码：

So I have the following code (which has been shamelessly copied from a tutorial so I can get the basics sorted), in which it asks the player to load their game (text-based adventure game) but I need a way to display all the saved games in the directory. I can get the current directory no worries. Here is my code:

public void load(Player p){
        Sleep s = new Sleep();
        long l = 3000;

        Scanner i = new Scanner(System.in);
        System.out.println("Enter the name of the file you wish to load: ");
        String username = i.next();
        File f = new File(username +".txt");
        if(f.exists()) {
            System.out.println("File found! Loading game....");
            try {
                //information to be read and stored
                String name;
                String pet;
                boolean haspet;

                //Read information that's in text file
                BufferedReader reader = new BufferedReader(new FileReader(f));
                name = reader.readLine();
                pet = reader.readLine();
                haspet = Boolean.parseBoolean(reader.readLine());
                reader.close();

                //Set info
                Player.setUsername(name);
                Player.setPetName(pet);
                Player.setHasPet(haspet);

                //Read the info to player
                System.out.println("Username: "+ p.getUsername());
                s.Delay(l);
                System.out.println("Pet name: "+ p.getPetName());
                s.Delay(l);
                System.out.println("Has a pet: "+ p.isHasPet());

            } catch(Exception e){
                e.printStackTrace();
            }
            }
    }

推荐答案

File currentDirectory = new File(currentDirectoryPath);
File[] saveFiles = currentDirectory.listFiles(new FilenameFilter() {
    @Override
    public boolean accept(File dir, String name) {
        return name.toLowerCase().endsWith(".txt");
    }
});

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