What is a web service?

Question

Java

What is it? Why do we need a web service? What service can be created in java using the soap protocol? Tell me how you can create it (can be links)?

Answer 1

What is a web service and why is it needed
?
then.
In enterprise circles in general and in java in particular, it is fashionable to write this using the blasphemous https://ru.wikipedia.org/wiki/SOAP , while all the normal guys have switched to https://ru.wikipedia.org/wiki/ REST and json.

Answer 2

Here is good about SOAP and REST samolisov.blogspot.ru/2013/12/soap-vs-restful.html