Minecraft 1.8 BETA Source code error fixes?

I downloaded Minecraft 1.8 BETA (jar file) recently just to make mods but without MCP because I don't like making mods with forge.
How so ever, so I decompiled and all those stuff and then I had all the source code in IntelliJ Idea, but now I need to know how to fix All the errors, thanks!

Can you get Minecraft for FREE on PC?

I want to get Minecraft (Full version for PC) without viruses where you can play online with all the mods but with no viruses please send the link

What gaming computer should I get?

I wan't to be able to play games like payday 2, League of legends, and install mods like the shaders mod on minecraft and not lagg and be able to get high fps.

Added (1). I don't want to pay more then $2000

Minecraft on a MacBook Air?

I've already downloaded minecraft on my Mac and I have noticed that it runs smoothly and I want to download some mods to my game. I don't plan on downloading any other games or programs and I just intend to use my Mac for the game and internet. Would it mess up the speed of my computer or would it be able to handle a couple of mods? Thanks for taking the time for reading and for any answers you might have!

Minecraft keeps crashing

This is the report
---- Minecraft Crash Report ----
// This doesn't make any sense!

Time: 7/22/14 7:05 AM
Description: Initializing game

org.lwjgl.LWJGLException: Pixel format not accelerated
at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat(Native Method)
at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat(WindowsPeerInfo.java:52)
at org.lwjgl.opengl.WindowsDisplay.createWindow(WindowsDisplay.java:244)
at org.lwjgl.opengl.Display.createWindow(Display.java:306)
at org.lwjgl.opengl.Display.create(Display.java:848)
at org.lwjgl.opengl.Display.create(Display.java:757)
at org.lwjgl.opengl.Display.create(Display.java:739)
at atv.O(SourceFile:297)
at atv.d(SourceFile:599)
at net.minecraft.client.main.Main.main(SourceFile:101)

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat(Native Method)
at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat(WindowsPeerInfo.java:52)
at org.lwjgl.opengl.WindowsDisplay.createWindow(WindowsDisplay.java:244)
at org.lwjgl.opengl.Display.createWindow(Display.java:306)
at org.lwjgl.opengl.Display.create(Display.java:848)
at org.lwjgl.opengl.Display.create(Display.java:757)
at org.lwjgl.opengl.Display.create(Display.java:739)
at atv.O(SourceFile:297)
there are no mods installed

Minecraft Modding Inventory Check?

Does anyone know if it is possible to make a mod which can check the players inventory for items or blocks? I'm trying to create an item that while in your inventory will make custom mobs hostile, but while you are not carrying it, they will be neutral. I've looked around google for a while and haven't been able to find anything. Any help will be appreciated.

How to install mods for minecraft? - 2

I've watched videos and read walkthroughs but i'm confused i need help as soon as possible. The only jar folder i have is the launcher i already have winrar and adf.ly doesn't work on my pc so i need direct links. I have a mod already(pixelmon).