About SoloLearn.

Question

Are the program exercises sufficient to complete at least one new programming language?

Answer 1

Nope,
You need to practice more from many resouces as long as you can.
SoloLearn covers the Basic knowledge to walk you through to the door of programming language. You've to walk yourself then.

Answer 2

Yes that's right.
@Jamilur masum.

Answer 3

Can you tell me briefly about SoloLearn