How to retexture an item in-game: minecraft?

How to retexture an item in-game: minecraft?

Start by going into a Minecraft version (current one) and go into it using WinRAR archiver. Then drag out the file called "assets" and edit any pictures in there you want to. Put it into another WinRAR file called the texture pack you want it to be called. Now put it in the "resourcepack" folder in your.minecraft and you should be good.

He said IN GAME

Poor man he just wanted to get a complete answer. The Guest was right that he said in-game. Without that it would be completely different [the matter of the sentence]. But to be exact it may work.