You can restart minecraft. Usually if it says out of memory, don't go to menu and play again, because i am sure that it will go out of memory, very soon.
You can search on Google on how to increase RAM on your minecraft client. Try to minimize entities (Doors, Mobs, Minecarts etc) and drops. Putting video settings to the simplest also helps.
There is a whole website dedicated to help prevent this error, I've included the link in the description to all of the fixes that they suggest.
Move the world into the memory stick in .minecraft
Steve was not a random name but a memory of someone in Minecraft.
only the people who work the coding of minecraft and release updates can fix bugs and crashes.
only the people who work the coding of minecraft and release updates can fix bugs and crashes.
minecraft pe is slow
Because you have a really bad computer and minecraft is using all of the memory.
No, but you can put it on a floppy.
Minecraft Stil
allocate more memory to run minecraft. Use a 64-bit java for optimum peformance
Because notch keeps adding stuff without fixing bugs
By getting more memory space.
Yes, the Minecraft demo does indeed have monsters. The only bad part about the Classic (demo) version of Minecraft is that it is not up-to-date, there are more bugs, and there are less items to build and things to see.