如何在Java中的目录中创建一个文件？
问题描述：
如果我想在 C：/a/b/test.txt 中创建一个文件，我可以这样做：
If I want to create a file in C:/a/b/test.txt, can I do something like:
File f = new File("C:/a/b/test.txt");
另外，我想用 FileOutputStream 来创建文件。那么我该怎么做呢？出于某种原因，文件不会被创建在正确的目录中。
Also, I want to use FileOutputStream to create the file. So how would I do it? For some reason the file doesn't get created in the right directory.
答
最好的方法是： p>
The best way to do it is:
String path = "C:" + File.separator + "hello" + File.separator + "hi.txt";
// Use relative path for Unix systems
File f = new File(path);
f.getParentFile().mkdirs();
f.createNewFile();