Java程序可以知道它的当前目录吗？

Question

Is it possible for Java application to know the its own current directory. I am referring to result of pwd .

For instance, when executed

~/Documents/workspace/Project/bin $ java com/foo/bar/baz/Runner files/text1.txt 
program should know ~/Documents/workspace/Project/bin


~/Documents/workspace/Project $ java com/foo/bar/baz/Runner files/text1.txt 
program should know ~/Documents/workspace/Project

Answer 1

也许这有助于：

File cwd = new File(".");

Answer 2

您可以使用System.getProperty("user.dir") 。

Answer 3

This is called the working directory . You can get it with the following instruction :

System.getProperty("user.dir");