multiple issues

Hi
I have been trying to fix multiple issues today. Minecraft was crashing so I uninstalled and reinstalled it. I allocated a larger amount of RAM from 1GB to 3GB. Then it had a Java(TM) Platform SE binary error and crashed. I then uploaded to the newest version of Java and rebooted the computer. The game is now crashing faster than before. I have attached the Launcher and Output logs in the attached txt file. Please can we have resolution to this. Thank you.