Artoid

I'm very new to modding, i have experimented with spigot plugins and know a fair bit of Java, i'm trying to get started making something very simple and most forge mod tutorials go straight into custom items or blocks, to get me going with listeners and basic methods does anybody have an example of a mod that will send a "hello world" to a player when they break a block. might seem very simple but i don't know how to get started Thanks