java - 创建文件夹然后在该文件夹中创建文件时遇到问题

Question

您好，我在创建文件夹时遇到问题，在该文件夹中将放置我在 for every 循环中创建的每个文件。这是一个基本问题，但我似乎看不到它，任何帮助将不胜感激!

Scanner inputScan = new Scanner(System.in);
    System.out.println("Enter location for output folder to be built..");
    String filePath=inputScan.next();
    inputScan.close();

    File dir = new File(filePath+"subnet_output");
    dir.mkdir();


    for(String myAddr: addr){
        String myFileName = myAddr.replaceAll("/", "-");

        File file = new File(dir+myFileName+".txt");
        PrintWriter writer = new PrintWriter(file, "UTF-8");

Answer 1

在文件夹内创建文件时缺少“/”:

File file = new File(dir+myFileName+".txt");

替换为:

File file = new File(dir+File.pathSeparator+myFileName+".txt");