Java - using System.getProperty(“user.dir”) to get the home directory [duplicate]

Question

This question already has an answer here:

• What is the best way to find the users home directory in Java? 9 answers

I was wondering if using:

System.getProperty("user.dir");

to get the absolute path of a folder is the best way to go about it? I am looking to pass my application onto other computers and I need a full proof way of getting the 'home' directory so that I can just add onto the path when I need to use other folders by just doing:

String path = System.getProperty("user.dir");
String otherFolder = path + "\\other";

Answer 1

way of getting home directory of current user is

String currentUsersHomeDir = System.getProperty("user.home");

and to append path separator

String otherFolder = currentUsersHomeDir + File.separator + "other";

File.separator

The system-dependent default name-separator character, represented as a string for convenience. This string contains a single character, namely separatorChar.

Answer 2

"user.dir" is the current working directory, not the home directory It is all described here.

http://docs.oracle.com/javase/tutorial/essential/environment/sysprop.html

Also, by using \\ instead of File.separator, you will lose portability with *nix system which uses / for file separator.

Answer 3

Program to get the current working directory=user.dir

public class CurrentDirectoryExample {

    public static void main(String args[]) {

        String current = System.getProperty("user.dir");
        System.out.println("Current working directory in Java : " + current);
    }
}