"Out of memory" - Minecraft

Bonjour,
Je joue a Minecraft depuis peu de temps, et au bout d'un certain moment, l'image se fige et laisse place a un message
"out of memory!
Minecraft has run out of memory.
This could be caused by a bug in the game or by the java virtual machine not being allocated enough memory. If you are playing in a web browser try downloading the game and playing it offline. To prevent level corruption, the game has quit .
We've tried to free enough memory to let you go back to the main menu and back to playing , but this may not have worked.
Please restart the game if you see this again."
Il y a t'il une ou des solutions a ce probleme?
Merci d'avance!