It really depends on what you want to make.

For web related projects, you would want to learn html/css/php/js and possibly python. These will also have the best online classes (ie codeacademy).

For desktop/server applications you would want to start by learning a C based/.net language. C# is still gaining popularity, C++ has always been huge. Java is also very huge.

Java is fun to learn but C# or C ++ is most popular

As others have said, it depends fully on what you'd like to create.

Websites: HTML, CSS, JS (w/ jQuery), PHP (w/ MySQL) and maybe some NodeJS and Python. That's general popularity. A lot of industry related sites use Java or ASP .net.

Desktop applications: C# (THE WINDOWS desktop programming language for GUI work - I mention GUI work because you can basically do everything C# can do w/ WinAPI and not have the CLR overhead - projects like Mono, Wine, etc. have not impressed me as a Linux user), Java (probably the most suited cross platform language for cross platform development), C++ (great language for desktop applications that require performance boosts. However, the cost, in terms of development, outweighs the slight performance decrease of a more productive, higher level language). As I've said, I'm a full-time linux user so I'd be betraying my race if I didn't mention Python as I see a lot of shit being programmed in that.

Games: C++ (well, game engine cores tend to be written in this however a lot of the APIs for massive engines use abstractions for actual game programming - example: unity), C# (Unity), JS (Unity, I think. Also you can develop 2D apps and other cool shit with HTML5 and JavaScript nowadays and have fully cross platform games in minutes).

Mobile Apps: Obj-C, Swift, Java, C#.

Along with these 'core/fundamental' industry languages, knowing things like: Go, Ruby and can be equally as interesting and useful.

Whatever you do, stay away from: Visual Basic and **** AutoIT. Thanks.