How can I move from java application testing to java programming?

Question

Java

I heard about such a profession (who knows what it's called exactly?) where a person tests applications in java, removes errors and the like. But how easy is it and does it make sense to switch to java programming? Are these 2 different professions testing and programming? Is it possible to immediately become a middle java programmer, for example, after 5 years of testing java applications?

Answer 1

Testers also write code
Sometimes - better than developers
No, you can't become a middle just like that. Even after 20 years of testing