Linux上的Java保存文件在哪里？

Question

so I have this problem:

I need to know where is Java saving the files when you create them with new, like this File file = new File ("file.txt"); on Linux?

Answer 1

Linux on not File file = new File ("file.txt") does not create a file on the file system. File is just a file path holder. You need to call file.createNewFile to create a file. Relative paths like file.txt are resolved against the current user directory, typically the directory in which the Java virtual machine was invoked

Answer 2

Assuming the file is actually being created by additional code (as Evgeniy mentioned), you could try checking to see if your current working directory isn't what you expect it to be. To find that directory you could try:

String cwd = System.getProperty("user.dir"));
System.out.println("Current working directory: " + cwd);

or just

System.out.println ("Path to file: " + file.getAbsolutePath());

To see where it should end up.

Answer 3

像在Windows中一样的地方：在当前目录中

Answer 4

Your mentioned code doesn't create new file physically on drive, but logically yes. If you alter the code to create a new file like file.createNewFile then the directory where you executed the code, a file would be created there.