Question

我正在创建一个目录，然后创建一个文件。问题是目录已创建，但文件不是。

当我这样做时，我正在创建并打印出“成功创建新文件：以及文件名称。

任何人都可以帮忙理解为什么吗？

public class Main 
{

    public static void main(String[] args) throws IOException
    {
        Scanner reader = new Scanner (System.in);
        boolean success = false;
        GetFiles getFile = new GetFiles();
        System.out.println("Enter path of directory to create");
        String dir = reader.nextLine();

        // Create a new directory in Java, if it doesn't exists
        File directory = new File(dir);
        if(directory.exists())
        {
            System.out.println("Directory already exists");
        }
        else
        {
            System.out.println("Directory not exists, creating now");
            success = directory.mkdir();
            if(success)
                System.out.println("Successfuly created new directory");
            else
                System.out.println("Failed to create new directory");
        }

        // Creatning new file in Java, only if not exists
        System.out.println("Enter file name to be created");
        String filename = reader.nextLine();

        File f = new File(filename);
        if(f.exists())
        {
            System.out.println("File already exists");
        }

        else 
        {
            System.out.println("No such file exists, creating now");
            success = f.createNewFile();
            if(success)
                System.out.printf("Successfully created new file: : %s%n", f);
            else
                System.out.printf("Failed to create new file: %s%n", f);
        }

        reader.close();
        getFile.getAllFiles(directory);
    }

}

Answer 1

您的代码完全正常运行。它实际上创建了文件。您可以在java项目中看到创建的文件。

只需添加此行代码，它就可以正常工作。

filename = dir + "\\" + filename;
File f = new File(filename);

为什么不创建文件

1 个答案: