Absolute path relative path problem under Java File Linux windows

Objective

Current project directory

Windows for E:\project\testpro\

Linux for /project/testpro/

Obtaining an absolute path condition in the Windows environment

Use A/B/C as the path to get the absolute path: new File ("a/b/c"). GetAbsolutePath ()

The resulting path is E:\project\testpro\sspt-sppt\a\b\c

Use the/A/B/C path to get the absolute path to the new File ("/a/b/c"). GetAbsolutePath ()

It gets the path to E:\a\b\c ,

The difference lies in whether or not the directory was added before /

In Linux, the identity is the root directory.

Under window, it is replaced with a:\, b:\, c \, D:\ And so on, the selection of the drive letter is the standard of the drive letter of the item in Windows, and if the item is in a directory of the E drive letter, the selected drive letter is e:\.

Obtaining an absolute path condition in a Linux environment

Use A/B/C as the path to get the absolute path: new File ("a/b/c"). GetAbsolutePath ()

The resulting path is /project/testpro/sspt-sppt/a/b/c

Use the/A/B/C path to get the absolute path to the new File ("/a/b/c"). GetAbsolutePath ()

The resulting path is /a/b/c

Absolute path relative path problem under Java File Linux Windows