Android three different ways to get file path

There are there different ways to get a file path :

File.getPath()
File.getAbsolutePath()
File.getCanonicalPath()

They adapt to different situations, for example :

File file = new File("./test.txt");
System.out.println(file.getPath());
System.out.println(file.getAbsolutePath());
System.out.println(file.getCanonicalPath());

This prints :

./test.txt
/home/XXX/IdeaProjects/LittlePractise/./test.txt
/home/XXX/IdeaProjects/LittlePractise/test.txt

So when I need to get the path of a file, File.getCanonicalPath() should be my first choice.