Access a directory

Question

I am using MacBook. I have a file located under ~/temp/note.txt.

(~ represents home directory by default in terminal).

I want to access this file in my java code:

File fileDir = new File("~/temp"); // I get exist = false, why? boolean exist = fileDir.exist();

But my java code can't find the directory ~/temp. I guess it is because java code can't recognize ~ ? How to make it work ?

Try ./ instead of ~/ if you are running this program from the home directory. If you want the home directory, you need to give the path explicitly — Chetan Kinger
– Chetan Kinger, Commented Feb 27, 2015 at 11:13
possible duplicate of How to get the User ~/Library path in Java for the Mac OS — Chetan Kinger
– Chetan Kinger, Commented Feb 27, 2015 at 11:17
possible duplicate of What is the best way to find the users home directory in Java? — Paco Abato
– Paco Abato, Commented Feb 27, 2015 at 11:18
How nice would it be if people checked if a question and answer already existed before posting anything.. — Chetan Kinger
– Chetan Kinger, Commented Feb 27, 2015 at 11:19
An information I am missing in the other answers: ~ is parsed by the shell. The issue that it doesn't work exists in all (other) programming languages. — glglgl
– glglgl, Commented Feb 27, 2015 at 11:23

vincent · Accepted Answer · 2015-02-27 11:15:49Z

May be you could use the system variables and concatenate with 'temp.txt'.
You could obtain your user home directory via :

 System.getProperty("user.home")

If it's not ok, try

System.getProperty("user.dir")

Hope this could help

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