you don't need to know java for simple modding, only a good amount of common sense. open the minecraft.jar file and take a look, read and look how it's built up. theres systems, follow them , then start by making your own blocks ect... yeah
I'm afraid that it is something you can not learn in a day. Not even a week. Java is complicated if you have no cluecwhat you're doing. There are many posts already on the forum explaining what you need and that teach you some basics. So go on Google and youtube and search it uo instead of making an unneeded post.
Here's a tip: you get better responses if you ask nicely without using caps lock.
There is a forum full of tutorials right here. A lot of tutorials tend to be basic, so if you want to make advanced mods, either learn some Java, or go into Google or Youtube and conduct some searches.
If you want to learn Java you can do some searching like I said above, buy a book that teaches Java, or get a tutor to teach you.