What language do you need to learn to create a service comparable in complexity to Google.Calendar (or what specialist to hire)?

Question

Java

The task is this: to create a service for small businesses, comparable in complexity to Google.Calendar. I'm wondering what language do I need for this? I was looking for an answer to this question and how I understand this is Java, right? What else is needed for implementation? If done by third-party specialists, do you want to know the real complexity of this project and the timing of its implementation by a professional? I would like to know in more detail since I myself am not a technical specialist.

Answer 1

Pun!
OK. I'll tell you how it is: only the real state of affairs.

I'm wondering what language do I need for this?

any.

I was looking for an answer to this question and how I understand this is Java, right?

Want Java - write on it.

What else is needed for implementation?

Knowledge of Internet technologies

If done by third-party specialists, do you want to know the real complexity of this project and the timing of its implementation by a professional?

No. I don't want to - I already know)

I would like to know in more detail since I myself am not a technical specialist.

This option is not available for you - in the next 3 years.
Bottom line: You need to either learn, or take a trusted IT person on staff or conclude an agreement with him and implement the project.

Answer 2

Language - whatever, even Java, even .NET, even Ruby, as long as there is a specialist who can implement the task in the chosen language.
If you implement Java, then you will need knowledge of JavaEE / Spring to write the backend, for the frontend - Vaadin or JSF + RichFaces / PrimeFaces (if you really want to implement EVERYTHING in Java), or some kind of JS framework like ExtJS, Angular.js, etc. .d.
Theoretically, on Spring and Angular, a project can be implemented in 2-3 months by two developers.