app > java > package name > MainActivity.java Knowing how to find and open up files like this is crucial to understanding Android Studio.

If you're tired of having to jump through hoops to open files with sudo privileges in the GNOME File Manager, Jack Wallen has just the trick you need.

Don't want web links to open in Safari, songs in iTunes or emails in Mail? We show how to make files and links automatically open in the apps of your choice, rather than macOS's defaults ...