Pre-Built Gaming Desktop or Laptop under $300?

I want a computer that can handle games like Minecraft and TF2. I can't, I repeat, can't build my own PC, so stop pushing for it. I'm aware that it is cheaper and better, but I want a premade one. I also want the OS to be Windows XP or higher. At least 4 GB of RAM and 320+ hard drive space.

Minecraft. Unplayable because of lag?

So I've had minecraft for awhile. It's recently been having problems with lag and flashes and blocks weren't breaking. So I deleted the minecraft.exe and went on the website and re downloaded. This only fixed the breaking blocks problem. Now I'm not tech savvy at all. So if you could put your answer in a simple form that would be great.

Will this Macbook pro be able to play Minecraft, League of Legends, and World of Warcraft?

I want to get the non retina display model that came out in 2012.

2.5GHz Dual-core Intel Core i5, Turbo Boost up to 3.1GHz
4GB 1600MHz DDR3 SDRAM - 2x2GB
500GB Serial ATA Drive @ 5400 rpm

Those are the specs but I will be changing it to 8 GB RAM, which is my main reason of keeping it the non-retina edition. I don't mind toning down the settings abit.

Can I connect two laptops for extra processing power?

I love PC gaming, but my PC is pretty ancient, so I use my laptop. Its decent, but I play everything on absolute minimum graphics, if I can run it at all. Now, my sister just gave me her old laptop that for some reason won't power up right now, and is missing a harddrive. Now, I'm pretty sure I know the reason why it won't power up, so don't get stuck on that detail. Is there some way I can connect these two computers together and make a franken-top to boost my performance in minecraft, even if it is only a little bit. The old laptop I want to salvage has pretty good hardware, a later generation Core2Duo and one of those cheapo intel GPUs.

Will adding ram increase fps in minecraft?

I have an intel pentium 4 dell computer with a dual core 3.2 ghz processor, and 2 gb of ram. I can play 1.7.10 at a playable rate(around 19-30 fps) please help

Java: No JVM could be found on your system

IT says No JVM could be found on your system. Please define EXE4J_JAVA_HOME to point to an installed 32-bit JDK or JRE or download a JRE from www.java.com.

I'm trying to open minecraft when it happens and I DID install java 64 bit and its obviously saying i didn't… I DO have a 64 bit system trying to get 64 bit java to work for minecraft please tell me what i have to do if it works i'll give you best answer.

What is the best site to learn coding (preferably in java)?

I would like to learn coding. I want to code in order to modify a game called Minecraft, and then move on to bigger projects. I have the latest version of Java and Java 64. I also have eclipse. I just need a good site (preferably free).

Ideas for what my new YouTube Gaming channel should be called?

I would like something with my name in it (Sophia), I will be playing a variety of games too from Minecraft to Call Of Duty. I also need something short but catchy, I really like the name iJustine so something short like that would be perfect (Obviously not iSophia)

I'm so stuck for ideas! So if you can help i will be very grateful, thanks.