What is needed to implement button click sound?

Question

Java

And so, the introductory ones are as follows:
You need to learn how to implement a method for processing pressing a button with sound.
For example, there are buttons 1 2 3 4.
When you press 1, one will be voiced, etc. respectively.
It is desirable to provide not the method itself, but a set of knowledge and sources for the implementation of this method.