Do i need to learn all programming languages or not to be able to developed software

Answer 1

learning a language is the easy part. the difficult part is knowing how to use the parts. I may know all the ingredients to bake a cake, but I’ll also need to know when and how to combine the ingredients effectively. thats why it is important to study algorithms, data structures and design patterns.

Answer 2

There are over 600 programming languages known to mankind.
Learning "all" is simply irrational.
You only need to go for programming languages that
1.Suits your need.
2.Object oriented
3.Has a large community.

Answer 3

An important part to learning programming is to know what each language provides for a problem.
There's some books that are on programming languages themselves which teaches you just that.
At the end, you'll know what languages do behind the scene and learning them is as easy just understanding the choices they made while designing the language.
The language is just a tool, understanding how to use the tool is important to understanding how the tool can be used to for the job at hand.

Answer 4

You really only need to learn one, but if you want to be good at it, learn many. For example, software programmers that have a base in Java/C++/C will do much better than those just in a language, say python.