Hello, Coding is just a set of instructions given to the computer to make a work. Think of coding as the letters in a language. The widely used computer languages are C,C++,JAVA,PYTHON. C is the basic language so you should first learn C to understand the fundamentals. You can start by reading the 11and 12th board books on Computer Science and join a certification course on any of the language. It will usually take up to 3 to 4 months.

Here is the link to know more about the online courses on coding

https://www.careers360.com/articles/18-best-online-scala-courses-certification

Best wishes.