1.12.2 What's the difference between EventHandler and SubscribeEvent?

[JustDreaming]

I catch events using SubscribeEvent, but i've seen how someone catchs one using EventHander(Plus, In main class all FML event is catched using EventHandler).  Why So?

I don't speak English. The text was compiled in the Google translator

[LexManos]

SubscribeEvent is for our EventBus system, Not sure what you mean by EventHandler as that's not a Forge related class.

[JustDreaming]

11 hours ago, LexManos said:

SubscribeEvent is for our EventBus system, Not sure what you mean by EventHandler as that's not a Forge related class.

I can't undestand why some events caught using EventHandler and other using SubscribeEvent. What's the difference between them?

[Paint_Ninja]

Please tell us the fully qualified name of EventHandler to help us understand what you're referring to.

For example, SubscribeEvent's fully qualified name is: "net.minecraftforge.eventbus.api.SubscribeEvent"

If EventHandler it doesn't start with "net.minecraftforge", it's likely not a part of Forge.

[JustDreaming]

3 hours ago, Paint_Ninja said:

Please tell us the fully qualified name of EventHandler to help us understand what you're referring to.

For example, SubscribeEvent's fully qualified name is: "net.minecraftforge.eventbus.api.SubscribeEvent"

If EventHandler it doesn't start with "net.minecraftforge", it's likely not a part of Forge.

Event Handler is in the package "net.minecraftforge.fml.common.Mod.EventHandler", and SubscribeEvent is in the package "net.minecraftforge.fml.common.eventhandler.SubscribeEvent"

Game Version is 1.12.2

[LexManos]

Ah, its old code that is outdated. Basically EventHandler is for FML specific events. Typically the lifecycle ones. 
On moddern versions its the modBus.